MedWorm.com provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest items from the 'Journal of Voice' source. Thu, 18 Mar 2010 14:20:24 +0100 http://www.medworm.com/index.php?rid=3367619&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199710000330%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367619 Mon, 01 Mar 2010 00:00:00 +0100 3367619 http://www.medworm.com/index.php?rid=3367618&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199710000202%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367618 Mon, 01 Mar 2010 00:00:00 +0100 3367618 http://www.medworm.com/index.php?rid=3367617&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219971000024X%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367617 Mon, 01 Mar 2010 00:00:00 +0100 3367617 http://www.medworm.com/index.php?rid=3367616&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199710000196%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367616 Mon, 01 Mar 2010 00:00:00 +0100 3367616 http://www.medworm.com/index.php?rid=3367615&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199710000184%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367615 Mon, 01 Mar 2010 00:00:00 +0100 3367615 http://www.medworm.com/index.php?rid=3367614&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199710000329%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367614 Mon, 01 Mar 2010 00:00:00 +0100 3367614 http://www.medworm.com/index.php?rid=3134507&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709002458%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134507 Fri, 01 Jan 2010 00:00:00 +0100 3134507 http://www.medworm.com/index.php?rid=3134506&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709002379%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134506 Fri, 01 Jan 2010 00:00:00 +0100 3134506 http://www.medworm.com/index.php?rid=3134505&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709002574%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134505 Fri, 01 Jan 2010 00:00:00 +0100 3134505 http://www.medworm.com/index.php?rid=3134504&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709002318%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134504 Fri, 01 Jan 2010 00:00:00 +0100 3134504 http://www.medworm.com/index.php?rid=3134503&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709002306%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134503 Fri, 01 Jan 2010 00:00:00 +0100 3134503 http://www.medworm.com/index.php?rid=3134502&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709002446%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134502 Fri, 01 Jan 2010 00:00:00 +0100 3134502 http://www.medworm.com/index.php?rid=3134488&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000885%2Fabstract%3Frss%3Dyes On December 24, 1922, Christmas Eve (“Aatto” in Finnish), Aatto Albanus Sonninen was born in Kuopio. After studies at the University of Helsinki, Medical School, 1945–1950, he specialized at first in phoniatrics in 1956 and then in otorhinolaryngology in 1957. One may wonder about this sequence, but, in fact, phoniatrics in Finland has been an independent specialty of its own standing since 1948. In spite of being a fully trained otolaryngologist, Aatto decided to “put his knife into the wall forever” (his own words) and to devote himself exclusively to phoniatrics, as senior physician and chief physician (phoniatrics) during 1957–1964 at Helsinki University Hospital and as head of the phoniatric department at Central Hospital of Central Finland in Jyväskylä during 1964–198... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134488 Mon, 30 Nov 2009 00:00:00 +0100 3134488 http://www.medworm.com/index.php?rid=2952195&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709001623%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952195 Sun, 01 Nov 2009 00:00:00 +0100 2952195 http://www.medworm.com/index.php?rid=2952194&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709001635%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952194 Sun, 01 Nov 2009 00:00:00 +0100 2952194 http://www.medworm.com/index.php?rid=2952193&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709001611%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952193 Sun, 01 Nov 2009 00:00:00 +0100 2952193 http://www.medworm.com/index.php?rid=2952192&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970900160X%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952192 Sun, 01 Nov 2009 00:00:00 +0100 2952192 http://www.medworm.com/index.php?rid=2952191&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709001647%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952191 Sun, 01 Nov 2009 00:00:00 +0100 2952191 http://www.medworm.com/index.php?rid=2952190&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709001817%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952190 Sun, 01 Nov 2009 00:00:00 +0100 2952190 http://www.medworm.com/index.php?rid=2952189&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709001805%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952189 Sun, 01 Nov 2009 00:00:00 +0100 2952189 http://www.medworm.com/index.php?rid=2754225&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709001258%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754225 Mon, 31 Aug 2009 23:00:00 +0100 2754225 http://www.medworm.com/index.php?rid=2754224&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970900126X%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754224 Mon, 31 Aug 2009 23:00:00 +0100 2754224 http://www.medworm.com/index.php?rid=2754223&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709001246%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754223 Mon, 31 Aug 2009 23:00:00 +0100 2754223 http://www.medworm.com/index.php?rid=2754222&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709001234%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754222 Mon, 31 Aug 2009 23:00:00 +0100 2754222 http://www.medworm.com/index.php?rid=2754221&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709001271%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754221 Mon, 31 Aug 2009 23:00:00 +0100 2754221 http://www.medworm.com/index.php?rid=2754201&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709001076%2Fabstract%3Frss%3Dyes On May 05, 2009, Dr. Richard Miller died in his sleep. What a loss to the singing world. Richard was a well-rounded astounding voice pedagogue. He worked hard at achieving this stature. In early days, he took a sabbatical and went to Europe with the purpose of visiting other leading voice teachers. The result of his studies was his book, The English, French, German and Italian Techniques of Singing, the first of its kind that details the pedagogy of the national schools. His knowledge of anatomy served him well in writing the description of various national schools as was evident in the anatomical terminology. In addition, his column in the NATS Singing Journal Sotto Voce informed all who read it of the advancements in vocal research and disorders he and others encountered in the teaching... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754201 Mon, 31 Aug 2009 23:00:00 +0100 2754201 http://www.medworm.com/index.php?rid=2574418&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000800%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574418 Tue, 30 Jun 2009 23:00:00 +0100 2574418 http://www.medworm.com/index.php?rid=2574417&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000782%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574417 Tue, 30 Jun 2009 23:00:00 +0100 2574417 http://www.medworm.com/index.php?rid=2574416&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000794%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574416 Tue, 30 Jun 2009 23:00:00 +0100 2574416 http://www.medworm.com/index.php?rid=2574415&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000770%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574415 Tue, 30 Jun 2009 23:00:00 +0100 2574415 http://www.medworm.com/index.php?rid=2574414&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000769%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574414 Tue, 30 Jun 2009 23:00:00 +0100 2574414 http://www.medworm.com/index.php?rid=2574413&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000952%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574413 Tue, 30 Jun 2009 23:00:00 +0100 2574413 http://www.medworm.com/index.php?rid=3134500&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000775%2Fabstract%3Frss%3Dyes The objective was to determine if particle size affects durability of medialization in patients undergoing injection laryngoplasty (IL) with hyaluronic acid (HA) for unilateral vocal cord paralysis (UVCP). We hypothesized that large particle-size HA (LPHA) persists longer after injection to produce a more durable vocal result. The study design used was a prospective randomized controlled single-blind trial. Patients underwent IL with Restylane (small particle-size HA, SPHA) or Perlane (LPHA) (Q-Med AB, Uppsala, Sweden). Injections were performed transcutaneously in the outpatient clinic. The Voice Handicap Index (VHI) at 6 months postinjection was the primary outcome measure. Secondary outcomes included videostroboscopic findings, and objective acoustic and aerodynamic measures. Seventeen ... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134500 Wed, 17 Jun 2009 00:00:00 +0100 3134500 http://www.medworm.com/index.php?rid=2754206&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001774%2Fabstract%3Frss%3Dyes Summary: Many conditions operate to degrade the quality of the human voice. Alcohol intoxication is one of them. In this project, the objectives were to examine the ability of human listeners to accurately estimate both the presence and severity of intoxication from two types of speech samples. A review of available data suggests that, although listeners can often identify individuals who are intoxicated simply by hearing samples of their voice, they are less efficient at accurately determining the severity of this condition. A number of aural-perceptual studies were carried out to test these relationships. Populations of speakers, selected based on rigorous criteria, provided orally read and extemporaneous utterances when sober and at three highly controlled levels of intoxication. Listen... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754206 Tue, 16 Jun 2009 23:00:00 +0100 2754206 http://www.medworm.com/index.php?rid=3134498&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708001458%2Fabstract%3Frss%3Dyes Summary: Lasers are a relatively recent addition to laryngeal surgery. Since their invention, laser use and applications have expanded rapidly. In this article, we discuss the benefits and disadvantages of lasers for different procedures, as well as ways to overcome commonly faced clinical problems. The use of lasers in surgery has offered a time- and cost-efficient alternative to cold surgical techniques, and has been used in the treatment of numerous laryngeal pathologies, including stenoses, recurrent respiratory papillomatosis, leukoplakia, nodules, malignant laryngeal disease, and polypoid degeneration (Reinke's edema). However, lasers can incur adjacent tissue damage and vocal fold scarring. These problems can be minimized through understanding the mechanisms by which lasers function... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134498 Mon, 01 Jun 2009 00:00:00 +0100 3134498 http://www.medworm.com/index.php?rid=3367613&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708001306%2Fabstract%3Frss%3Dyes Summary: To determine the effectiveness of Botox treatment for adductor spasmodic dysphonia (ADSD), the clinician and patient judge changes in voice symptoms and the effect on quality of life. Currently, there is no standard protocol for determining the effectiveness of Botox injections in treating ADSD. Therefore, clinicians use a variety of perceptual scales and patient-based self-assessments to determine patients' impressions of severity and changes after treatments. The purpose of this study was to assess clinician-patient agreement of the effects of Botox on voice quality and quality of life in ADSD. Retrospective chart review of 199 randomly selected patients since 2004. Results indicated a weak correlation between the patient's assessment of voice impairment (EIS) and patient's qual... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367613 Fri, 29 May 2009 00:00:00 +0100 3367613 http://www.medworm.com/index.php?rid=3367605&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708001240%2Fabstract%3Frss%3Dyes The objective of this study was to investigate risk factors of voice problems for teachers with voice disorders as compared to teachers without voice disorders. Many studies have reported risk factors and effects of teachers' voice problems from different professions. Few researchers have investigated these phenomena among people of the same occupation. The purposes of the study are (1) to investigate risk factors of voice problems for Taiwanese teachers with voice disorders as compared to teachers without voice disorders; and (2) to investigate effects of voice problems on daily life in the two groups. A prospective study was designed for this research. One hundred and seventeen questionnaires were collected from schoolteachers. The subjects were divided into a voice disorder group (VD gr... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367605 Fri, 29 May 2009 00:00:00 +0100 3367605 http://www.medworm.com/index.php?rid=3367600&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708001318%2Fabstract%3Frss%3Dyes Summary: The aim of the present study was to evaluate the effects of age and gender on selected vocal fold vibratory behaviors during vowel prolongation and connected speech using electroglottography (EGG). Forty-six young and older individuals (23 males and 23 females) with normal voices participated in this study. EGG parameters including fundamental frequency and contact quotient were measured during sustained vowel prolongation and connected speech tasks. Significant age-by-gender interactions were found for both parameters. Moreover, results from discriminant function analyses revealed that the overall accuracies of the parameters in predicting different age and gender groups were higher for the connected speech tasks than for the sustained vowel prolongation task (89.1% and 73.9% for... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367600 Fri, 29 May 2009 00:00:00 +0100 3367600 http://www.medworm.com/index.php?rid=2391887&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000514%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2391887 Fri, 01 May 2009 04:00:00 +0100 2391887 http://www.medworm.com/index.php?rid=2391886&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000496%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2391886 Fri, 01 May 2009 04:00:00 +0100 2391886 http://www.medworm.com/index.php?rid=2391885&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000502%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2391885 Fri, 01 May 2009 04:00:00 +0100 2391885 http://www.medworm.com/index.php?rid=2391884&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000484%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2391884 Fri, 01 May 2009 04:00:00 +0100 2391884 http://www.medworm.com/index.php?rid=2391883&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000472%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2391883 Fri, 01 May 2009 04:00:00 +0100 2391883 http://www.medworm.com/index.php?rid=3367601&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970800115X%2Fabstract%3Frss%3Dyes Summary: Only limited data on normal vocal constitution and vocal capabilities in school-aged children are available. To take better care of children's voices, it might be helpful to know voice ranges and limits of not only vocally trained but also vocally untrained children. Goal of this study was the evaluation of singing voice capabilities of vocally healthy children with different social and vocal/musical backgrounds using voice range profile measurements (VRP). VRP percentiles that reflect constitutional aspects were suggested. In this cross-sectional study, 186 children (aged between seven and 10 years), attending five schools, were included. VRP measurements were performed under field conditions. Interviews and questionnaires regarding vocal strain and vocal training were applied; t... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367601 Mon, 23 Mar 2009 00:00:00 +0100 3367601 http://www.medworm.com/index.php?rid=2360327&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000174%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360327 Sun, 01 Mar 2009 05:00:00 +0100 2360327 http://www.medworm.com/index.php?rid=2360326&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000150%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360326 Sun, 01 Mar 2009 05:00:00 +0100 2360326 http://www.medworm.com/index.php?rid=2360325&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000162%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360325 Sun, 01 Mar 2009 05:00:00 +0100 2360325 http://www.medworm.com/index.php?rid=2360324&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000149%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360324 Sun, 01 Mar 2009 05:00:00 +0100 2360324 http://www.medworm.com/index.php?rid=2360323&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199709000137%2Fabstract%3Frss%3Dyes (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360323 Sun, 01 Mar 2009 05:00:00 +0100 2360323 http://www.medworm.com/index.php?rid=2360322&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001282%2Fabstract%3Frss%3Dyes In this study, we analyze objective voice parameters in these patients before and after surgery. The objective of this retrospective chart review is to demonstrate the change in aerodynamic and acoustic properties of voice in patients with VFP who undergo combined AA and MLG, with or without CTS. Seventy-five patients underwent combined AA and MLG between May 2001 and September 2006; 28 completed both preoperative and postoperative voice evaluation including aerodynamic and acoustic testing. Retrospective chart review is used to compare pre- and postoperative voice parameters in these patients. Statistically significant increases in mean maximum phonation time (MPT) and mean intensity of “/pæ/” during aerodynamic testing, with a statistically significant decrease in mean glottal airfl... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360322 Sun, 01 Mar 2009 05:00:00 +0100 2360322 http://www.medworm.com/index.php?rid=2360321&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970700121X%2Fabstract%3Frss%3Dyes Summary: With the use of the pharyngoesophageal (PE) segment as the neoglottis in esophageal speakers, their voice quality becomes significantly different from that of laryngeal speakers. The present study investigated the characteristics of the vocal tract resonance in Mandarin esophageal speakers. The first three formant frequencies of vowels /а, ɛ, i, ɔ, u, y/ produced by seven superior esophageal and seven laryngeal speakers of Mandarin were obtained. For each formant, the formant frequencies measured from the medial 80% of the vowel portion were averaged, and data obtained from esophageal speakers were compared with that obtained from laryngeal speakers. The results indicated that esophageal speakers were associated with significantly higher formant frequencies (F1, F2, and F3) and... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360321 Sun, 01 Mar 2009 05:00:00 +0100 2360321 http://www.medworm.com/index.php?rid=2360320&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707000100%2Fabstract%3Frss%3Dyes This study is a cross-sectional study of the largest cohort of TO speakers treated by a single surgeon. A second group of normal laryngeal speakers served as a control group. EGG analysis of both groups using connected speech and sustained vowels was performed. Two trained expert raters undertook perceptual evaluation using two accepted scales. EGG measures were then analyzed for correlation with treatment variables. A separate correlation analysis was performed to identify EGG measures that may be associated with perceptual dimensions. Our data from EGG analysis are similar to data obtained from conventional acoustic signal analysis of TO speakers. Sustained vowel and connected speech parameters were poorer in TO speakers than in normal laryngeal speakers. In perceptual evaluation, only g... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360320 Sun, 01 Mar 2009 05:00:00 +0100 2360320 http://www.medworm.com/index.php?rid=2360319&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001129%2Fabstract%3Frss%3Dyes Summary: Vocal quality was analyzed in 20 subjects who underwent total laryngectomy with insertion of voice prosthesis (TL with VP) and in 10 subjects who underwent supracricoid laryngectomy (SCL). Acoustic analysis was carried out using Lingwaves and Praat, for sustained vowels and conversation to obtain the fundamental frequency (F0) and jitter parameters. Perceptual evaluations and self-assessment of voice impact on the quality of life were also performed. Results showed statistically significant differences between TL+VP and SCL individuals for the mean F0 during conversation, for Roughness, Grade of voice quality, and self-assessment of speech, with worst results in the SCL group. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360319 Sun, 01 Mar 2009 05:00:00 +0100 2360319 http://www.medworm.com/index.php?rid=2360318&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001191%2Fabstract%3Frss%3Dyes Summary: Dynamic magnetic resonance imaging (MRI) of the larynx and vocal folds during phonation was used for measuring the vertical laryngeal movements and the glottal angle of the vocal folds opening and closing in dynamic phase. The data used in this analysis were taken on 10 healthy volunteers during maximal inspiration and the prolonged phonation of the vowels [i] (as in key), [a] (as in car), [u] (as in loop), and the consonant [sh] (as in ship). The results of our MRI data have demonstrated the difference of the vocal folds movement in relation to the vowel and consonant sounds, with a large glottal opening for [sh] and a narrow opening for [i] and [u], and the difference of the laryngeal position in relation to the vowels, with [a] and [u] having a lower larynx position than [i]. I... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360318 Sun, 01 Mar 2009 05:00:00 +0100 2360318 http://www.medworm.com/index.php?rid=2360317&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707000112%2Fabstract%3Frss%3Dyes Summary: Manipulation of the nerve supply to the posterior cricoarytenoid (PCA) muscle has potential for ameliorating the symptoms of some neurologic conditions such as abductor spasmodic dysphonia. The anatomy of the nerve supply to the PCA is better understood than in previous eras, but the anatomical understanding has not translated to clinical application yet. Microscopic dissection allowed the identification and measurement of the branches from the recurrent laryngeal nerves (RLNs) to the PCA in 43 human cadaver larynges. The cricothyroid (CT) joint was the primary landmark for measurement. Other structural measurements were also made on the larynges. All of the PCA muscles received innervation from the anterior division of the RLN. The number of direct branches from the RLN ranged fr... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360317 Sun, 01 Mar 2009 05:00:00 +0100 2360317 http://www.medworm.com/index.php?rid=2360316&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001105%2Fabstract%3Frss%3Dyes Summary: Contemporary commercial music (CCM) performers rely heavily on their voice, yet may not be aware of the importance of proactive voice care. This investigation intends to identify perceptions and barriers to seeking voice care among CCM artists. This cross-sectional observational study used a 10-item Likert-based response questionnaire to assess current perceptions regarding voice care in a population of randomly selected participants of professional CCM conference. Subjects (n=78) were queried regarding their likelihood to seek medical care for minor medical problems and specifically problems with their voice. Additional questions investigated anxiety about seeking voice care from a physician specialist, speech language pathologist, or voice coach; apprehension regarding findings ... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360316 Sun, 01 Mar 2009 05:00:00 +0100 2360316 http://www.medworm.com/index.php?rid=2360315&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970700118X%2Fabstract%3Frss%3Dyes In this study, we have analyzed patients with benign voice problems before and after treatment in the period of April 2004 to October 2006. The study group consisted of 68 patients (39 female). For comparison reason, we included a control group (n=68), matched for age and gender. The mean VHI score of the patient group before treatment was 48.9 (SD=20.9). After treatment, there was a significant improvement to 28.3 (SD=20.5) (P (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360315 Sun, 01 Mar 2009 05:00:00 +0100 2360315 http://www.medworm.com/index.php?rid=2360314&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001208%2Fabstract%3Frss%3Dyes This study explored and validated the Voice Disability Coping Questionnaire (VDCQ), a newly developed disease-specific coping measure, which elicits how patients cope with voice problems. Eighty subjects presenting with muscle tension dysphonia (MTD) and adductor spasmodic dysphonia (ASD) completed a 28-item VDCQ as part of an initial assessment protocol before intervention, within a longitudinal study. Principal component analyses were used to investigate the underlying structure of this questionnaire; analyses of variance were used to determine group differences in coping strategies. The principal component analyses generated four coping subscales: “social support,” “passive coping,” “avoidance,” and “information seeking” measured over 15 items. The subscales revealed log... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360314 Sun, 01 Mar 2009 05:00:00 +0100 2360314 http://www.medworm.com/index.php?rid=2360313&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001221%2Fabstract%3Frss%3Dyes Summary: There has been no published research on muscle tension dysphonia (MTD) in speakers who use a tonal language. Using a sample of 47 Northern Vietnamese female primary school teachers with MTD, we aimed to discover whether professional voice users of tonal languages presented with the same symptoms of MTD as speakers of nontonal languages and whether they presented with additional symptoms as a result of speaking a tonal language. The vocal characteristics were assessed by use of a questionnaire and expert perceptual evaluation. Laryngeal features were assessed by photolaryngoscopy. The results showed that MTD was associated with a larger number of vocal symptoms than previously reported. However, the participants did not have the same vocal symptoms reported in English speakers, for... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360313 Sun, 01 Mar 2009 05:00:00 +0100 2360313 http://www.medworm.com/index.php?rid=2360312&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001233%2Fabstract%3Frss%3Dyes Summary: The aim of this study was to evaluate vocal changes in patients with attention deficit hyperactivity disorder (ADHD). Nineteen children diagnosed to have ADHD according to the Diagnostic and Statistical Manual of Mental Disorders criteria and 19 controls were enrolled in this study. They underwent vocal perceptual evaluation and acoustic analysis. Hoarseness, breathiness, strain, and loudness were graded on a scale of 0–3. The following acoustic parameters were recorded: Fundamental frequency, Shimmer, Relative average perturbation, Noise-to-Harmony ratio, Voice Turbulence Index, and Habitual pitch. Children with ADHD were perceived to have significantly more hoarseness, breathiness, and straining in their voice. They were also louder compared to controls. There were no signific... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360312 Sun, 01 Mar 2009 05:00:00 +0100 2360312 http://www.medworm.com/index.php?rid=2360311&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001269%2Fabstract%3Frss%3Dyes Summary: The aim of the study was to investigate the extent to which regular singing activity and voice training in children and adolescents enhance their voice performance parameters and their perception of their own voice and the extent to which their voice control is improved. At the same time, additional effects of age and sex were also taken into account. We investigated 183 children and adolescents between 6 and 19 years of age (mean age: 13.5 years) and assigned them to groups with different levels of voice strain and training with voice specialists. This was done on the basis of a classification of singing activity which we developed ourselves. We measured the voice parameters, and all of the test subjects were asked to appraise their perception and conscious control of their voice... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360311 Sun, 01 Mar 2009 05:00:00 +0100 2360311 http://www.medworm.com/index.php?rid=2360310&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001270%2Fabstract%3Frss%3Dyes Summary: We investigate the potential of high-speed digital imaging technique (HSI) and the phonovibrogram (PVG) analysis in normal vocal fold dynamics by studying the effects of continuous voice use (vocal loading) during the workday. One healthy subject was recorded at sustained phonation 13 times within 2 consecutive days in the morning before and in the afternoon after vocal loading, respectively. Vocal fold dynamics were extracted and visualized by PVGs. The characteristic PVG patterns were extracted representing vocal fold vibration types. The parameter values were then analyzed by statistics regarding vocal load, left-right PVG asymmetries, anterior-posterior PVG asymmetries, and opening-closing differences. For the first time, the direct impact of vocal load could be determined by ... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360310 Sun, 01 Mar 2009 05:00:00 +0100 2360310 http://www.medworm.com/index.php?rid=2360309&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001245%2Fabstract%3Frss%3Dyes Summary: Measuring subglottal pressure (Ps) with complete interruption can be problematic due to unsteady plateaus in supraglottal pressure data traces during balloon valve interruption. Subjectively determining when the graph plateaus neglect the effects of laryngeal, auditory, and other physical reflexes may alter patient effort and glottal configuration. If the Ps estimation was made at a consistent time before the onset of reflexes, the recorded pressure would not be dependent on subjective analysis by a clinician, and intrasubject data would be more precise. Previously collected data using the airflow interruption system have shown consistency at approximately 150 milliseconds after balloon valve inflation. To evaluate the validity of estimating Ps at this point, a theoretical and a p... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360309 Sun, 01 Mar 2009 05:00:00 +0100 2360309 http://www.medworm.com/index.php?rid=2360308&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001117%2Fabstract%3Frss%3Dyes This report describes the experimental validation of this measure, whereby the SP and EGG signals were recorded synchronously with high-speed videoendoscopy, from which a digital kymogram was generated. It is shown that, after appropriate signal processing, the intersignal time delay provides a potentially useful measure that varies with vocal attack characteristics. The proposed method calls for no invasive procedures and relies on signals that are routinely obtained in most clinical settings. Unlike acoustic “rise time” measures of voice onset, the glottographic measure involves no operator intervention, requires no arbitrary decisions about measurement points, and may be accomplished quickly and automatically on any personal computer. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360308 Sun, 01 Mar 2009 05:00:00 +0100 2360308 http://www.medworm.com/index.php?rid=2360307&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707000689%2Fabstract%3Frss%3Dyes Summary: The goal of this investigation was to test a new methodology for measuring amplitude modulation (AM) at the level of the vocal folds during vibrato in trained singers, because previous research has suggested that AM arises in large part as an acoustic epiphenomenon through an interaction of the harmonics in the laryngeal source with the resonances of the vocal tract as the fundamental frequency oscillates. A within-subjects model was used to compare vocal activity across three pitch and three loudness conditions. Seventeen female singers with a range of training and experience were recorded with a microphone and an electroglottograph (EGG). Fluctuations in the ratio of closing to opening peaks in the first derivative of the EGG signal were used as an index of laryngeal-level AM. E... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360307 Sun, 01 Mar 2009 05:00:00 +0100 2360307 http://www.medworm.com/index.php?rid=2360306&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001257%2Fabstract%3Frss%3Dyes Summary: The aim of this study was to measure the shear modulus of the vocal fold in a human hemilarynx, such that the data can be related to direction of applied stress and anatomical context. Dynamic spring rate data were collected using a modified linear skin rheometer using human hemilarynges, and converted to estimated shear modulus via application of a simple shear model. The measurement probe was attached to the epithelial layer of the vocal fold cover using suction. A sinusoidal force of 3g was applied to the epithelium, and the resultant displacement logged at a rate of 1kHz. Force measurement accuracy was 20μg and position measurement accuracy was 4μm. The force was applied in a transverse direction at the midmembranous point between the vocal process and the anterior commissur... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360306 Sun, 01 Mar 2009 05:00:00 +0100 2360306 http://www.medworm.com/index.php?rid=2360305&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707000069%2Fabstract%3Frss%3Dyes Summary: As the number of interventions for vocal fold scar grows and with the advancement of mathematical modeling, greater accuracy and precision in the measurement of vocal fold pliability will become essential. Although indirect pliability measures have been used successfully, direct measurement of tissue pliability is essential. Indirect measurement with parallel plate technology has limitations; it requires the tissue to be removed from the surrounding framework, allows no site specificity, and offers no future for in vivo use in animals or humans. We tested the linear skin rheometer (LSR) in the evaluation of vocal fold pliability. We measured site-specific rheology of vocal folds thereby creating “pliability maps” in human, dog, and rat cadaveric larynges under conditions of al... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2360305 Sun, 01 Mar 2009 05:00:00 +0100 2360305 http://www.medworm.com/index.php?rid=3367602&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708001136%2Fabstract%3Frss%3Dyes Conclusions: The present study developed a body of normal data for various parameters of acoustic analysis in different age groups and genders of normal Iranian adults. It seems that the majority of voice characteristics of adults was relatively stable and did not change with aging between 20 and 50 years. However, the voice characteristics of adults older than 50years were not recorded in this study and therefore require further investigation. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367602 Mon, 23 Feb 2009 00:00:00 +0100 3367602 http://www.medworm.com/index.php?rid=3367597&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708001112%2Fabstract%3Frss%3Dyes Summary: The relationship between the change in fundamental frequency of phonation (F0) per unit change of transglottal pressure (dF/dP) was studied using a rubber model of the vocal folds that allows the stiffness and elongation of the vibrating part to be varied flexibly. Changes in elongation and stiffness successfully reproduced the negative relationship between dF/dP and F0 at low F0 seen in humans. The thyroarytenoid muscle appears to work concomitantly with the cricothyroid (CT) muscle to regulate F0, raising F0 by increasing the stiffness of the vibrating part at low F0, that is, when the CT muscle is relaxed. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367597 Mon, 23 Feb 2009 00:00:00 +0100 3367597 http://www.medworm.com/index.php?rid=2489644&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001361%2Fabstract%3Frss%3Dyes Summary: Part 1 of this paper compared fiber optic (FO) and distal chip (DC) flexible technologies in the diagnosis of vocal fold masses and mucosal wave abnormalities. Part 2 of this study was designed to evaluate the usefulness of FO and DC flexible imaging in the diagnosis of laryngopharyngeal reflux (LPR) disease. Thirty-four consecutive patients were examined with either FO or DC flexible stroboscopy followed immediately by rigid stroboscopy. Rigid stroboscopy was considered the “gold-standard” for this study. All stroboscopy segments were evaluated by two laryngologists, an otolaryngologist, a laryngology fellow, and an otolaryngology resident for physical findings of LPR using the Reflux Finding Score (RFS) and Posterior Erythema Grade (PE grade). Both flexible systems underrepr... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2489644 Mon, 02 Feb 2009 00:00:00 +0100 2489644 http://www.medworm.com/index.php?rid=3367607&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708001082%2Fabstract%3Frss%3Dyes The objective was to investigate the applicability of the Dysphonia Severity Index (DSI) and the Voice Handicap Index (VHI) in evaluating effects of intervention between groups of patients and for intrasubject differences and whether DSI and VHI are complementing measurements. Analyses of measurement data before and after intervention of 171 patients with voice disorders. The voice quality was measured objectively with the DSI. The perceived voice handicap was measured with the VHI. Three groups of patients were used: patients who had voice therapy, phonosurgery, or no intervention. DSI and VHI improved significantly after intervention in the voice therapy and the surgery group (median difference DSI 1.19 and 3.03, VHI −8 and −26, respectively). The intrasubject results were analyzed b... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367607 Fri, 30 Jan 2009 00:00:00 +0100 3367607 http://www.medworm.com/index.php?rid=3367606&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000763%2Fabstract%3Frss%3Dyes Summary: To review existing patient reported outcomes measures (PROMs) used in dysphonic populations to assess the procedures used in their development and the extent to which these meet current development standards for content generation and psychometric evaluation. The study is a systematic review. A systematic review of Medline, Cumulative Index to Nursing & Allied Health, and Health and Psychosocial Instruments databases was completed using voice, quality of life, and PROMs as keywords. We identified all patient or parent-reported questionnaires measuring quality of life associated with voice disorders from the review findings. Questionnaires were appraised for adherence to international guidelines for the development and evaluation of PROMs as outlined by the Scientific Advisory Comm... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367606 Fri, 30 Jan 2009 00:00:00 +0100 3367606 http://www.medworm.com/index.php?rid=3367604&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000751%2Fabstract%3Frss%3Dyes The objective of the study was to measure the subjective long-term effects of vocal therapy (more than 6 months) in 29 patients suffering from dysfunctional dysphonia. Four subjective measurements were used: one visual analog scale ranging from 0 (not efficient at all) to 100 (very efficient); one question “Is the speech therapy still efficient?,” answered by yes or no; the GRB parameters of the GRBAS scale (evaluated by the patient); and the VHI-10. The results show that 76% of the patients consider that the vocal therapy they received is still efficient. On the vocal quality (G), roughness (R), and breathiness (B) parameters, we observe a high degree of satisfaction on the G parameter (median=77). The scores on the R and B parameters are lower (median R=12, S=5). Roughness is signifi... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367604 Fri, 30 Jan 2009 00:00:00 +0100 3367604 http://www.medworm.com/index.php?rid=3367603&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708001252%2Fabstract%3Frss%3Dyes Summary: Experiments to study voice quality have typically used rating scales or direct magnitude estimation to obtain listener judgments. Unfortunately, the data obtained using these tasks are context dependent, which makes it difficult to compare perceptual judgments of voice quality across experiments. The present experiment describes a simple matching task to quantify voice quality. The data obtained through this task were compared to perceptual judgments obtained using rating scale and direct magnitude estimation tasks to determine whether the three tasks provide equivalent perceptual distances across stimuli. Ten synthetic vowel continua that varied in terms of their aspiration noise were evaluated for breathiness using each of the three tasks. Linear and nonlinear regressions were u... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367603 Fri, 30 Jan 2009 00:00:00 +0100 3367603 http://www.medworm.com/index.php?rid=3367599&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708001094%2Fabstract%3Frss%3Dyes Summary: The cricothyroid joint (CTJ) plays a key role in pitch adjustment of the human voice. It allows an external elongation of the vocal fold performed by the cricothyroid muscle with a consecutive stretching and increasing of tension. Phonosurgical methods such as cricothyroid approximation need sophisticated investigations on anatomical and functional principles because of the low satisfaction rates. Fifty cadaveric specimens were analyzed to reveal the morphological and functional anatomy of the CTJ focusing on possible gliding movements in a horizontal and vertical direction. The cartilaginous surfaces of the CTJ were categorized according to Maue and Dickson into three different types (type A: well-defined facet; type B: no definable facet; type C: flat cartilage surface or protub... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367599 Fri, 30 Jan 2009 00:00:00 +0100 3367599 http://www.medworm.com/index.php?rid=3367598&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000908%2Fabstract%3Frss%3Dyes Summary: The area of vocal registers is still unclarified. In a previous investigation, dynamic real-time magnetic resonance imaging (MRI), which is able to produce up to 10 frames per second, was successfully applied for examinations of vocal tract modifications in register transitions in male singers. In the present study, the same MRI technique was used to study vocal tract shapes during four professional young sopranos' lower and upper register transitions. The subjects were asked to sing a scale on the vowel /a/ across their transitions. The transitions were acoustically identified by four raters. In neither of these transitions, clear vocal tract changes could be ascertained. However, substantial changes, that is, widening of the lips, opening of the jaw, elevation of the tongue dors... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367598 Fri, 30 Jan 2009 00:00:00 +0100 3367598 http://www.medworm.com/index.php?rid=3134501&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000738%2Fabstract%3Frss%3Dyes The objective of this study was to document functional results and to compare objective and subjective voice measures after endoscopic laryngoplasty with injection of polydimethylsiloxane (PDMS) for the treatment of unilateral vocal fold paralysis, and to verify PDMS biocompatibility in vocal fold. The design used was a longitudinal prospective study. Fifteen patients with unilateral vocal fold paralysis underwent endoscopic injection of PDMS in general anesthesia. Accurate voice evaluation protocol (acoustic and aerodynamics analyses, GIRBAS [Grade, Instability, Roughness, Breathiness, Asthenia, and Strain] scale, videostrobolaryngoscopy, and Voice Handicap Index test) before, after surgery, and at follow-up time was performed. The median follow-up was 21.7 months (range, 6–35). Data ob... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134501 Fri, 30 Jan 2009 00:00:00 +0100 3134501 http://www.medworm.com/index.php?rid=3134499&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000714%2Fabstract%3Frss%3Dyes This study was performed retrospectively to evaluate the incidence of documented vocal fold injury as a result of elective endotracheal intubation during general surgical procedures. Medical record review was performed at a single institution and all surgical cases reviewed which required endotracheal intubation in the nonemergent setting between April 1, 2003 and August, 31, 2007. Cases with unexpected and documented vocal fold immobility postoperatively formed the study cohort, and data were gathered regarding diagnosis and procedures performed. Of 23 010 general surgery cases performed during the study period, only seven documented cases of vocal fold paralysis were discovered (0.03%). There were five women and two men in the group; all were adults. Only one patient had a primary diagno... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134499 Fri, 30 Jan 2009 00:00:00 +0100 3134499 http://www.medworm.com/index.php?rid=3134495&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000891%2Fabstract%3Frss%3Dyes Summary: The goal of this pilot study was to determine whether the ability to change the degree of posterior glottal adduction (PGA) during phonation can be acquired more easily with the aid of electroglottographic (EGG) real-time feedback. The subject was a 37-year-old untrained female with habitually breathy voice. Before the experiment, she participated in one voice coaching session where exercises for increasing PGA were explained and executed. During the experiment, phonation has been monitored simultaneously with videostroboscopy, electroglottography, and audio recording. While phonating, the subject saw amplitude and period normalized EGG waveform representing one glottal cycle consecutively changing over time. The assignment was to increase the width of the EGG waveform during phon... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134495 Fri, 30 Jan 2009 00:00:00 +0100 3134495 http://www.medworm.com/index.php?rid=3134492&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000726%2Fabstract%3Frss%3Dyes In this study we compare nine singers in different stages of training, from university level students through to international soloists. Typically, Energy Ratio (ER; a measure of mean spectral slope) and mean sound pressure level (SPL) may be calculated to summarize an entire singing sample. We investigate an alternative approach, by calculating the time-varying ER and SPL. The inspection of the distribution of these descriptors over an aria's time period yields a more detailed picture of the strategies for high-frequency energy production used by singers with different levels of training. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134492 Fri, 30 Jan 2009 00:00:00 +0100 3134492 http://www.medworm.com/index.php?rid=3367612&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708001100%2Fabstract%3Frss%3Dyes Summary: Vocal fold bridges are rare pathologies and mostly coincidentally discovered in direct laryngoscopy. Although the pathophysiology of formation is not well established, it is attributed as a primary pathology that accompanies sulcus and related vocal fold disorders. This paper presents a vocal fold bridge formation in a professional singer after surgical removal of a sulcus cyst formed as a sequela with typical histologic findings resembling the primary bridges. This case report addresses a very rare unpublished complication of a phonomicrosurgical procedure and implicates the evidence of trauma in the etiology. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367612 Mon, 12 Jan 2009 00:00:00 +0100 3367612 http://www.medworm.com/index.php?rid=3367608&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708001070%2Fabstract%3Frss%3Dyes The objective of this study was to develop a statistically robust tool for assessing voice disorder outcomes in the Indian population. A 32-item assessment tool called the Voice Disorder Outcome Profile (Voice-DOP) was developed after consultation with two different sets of speech–language pathologists and individuals with voice disorders. Voice-DOP measures voice disorder outcomes in three domains, physical, emotional, and functional. The questionnaire was given to 42 individuals with various voice disorders and 30 control subjects with no vocal pathology. The data obtained were subjected to measures of reliability (internal consistency and test–retest) and validity (content, construct, and concurrent). Results showed that Voice-DOP had high internal consistency (Cronbach's alpha leve... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367608 Mon, 12 Jan 2009 00:00:00 +0100 3367608 http://www.medworm.com/index.php?rid=3134496&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000878%2Fabstract%3Frss%3Dyes The objective was to analyze the occurrence of vocal fatigue, hoarseness, and dry throat in elementary and high school teachers and their association with vocal habits, fluid intake, mastication, and sleep. A sample of 422 elementary and secondary school teachers was studied using a specific questionnaire. The multiple regression analysis showed that hoarseness was associated with absence of water intake (odds ratio (OR)=1.7; P=0.047), yelling/speaking loudly (OR=1.6; P=0.058), jaw-opening limitations (OR=3.8; P=0.003), average of 6 hours of sleep/night (OR=1.7; P=0.039), and waking-up feeling replenished (OR=2.0; P=0.020). The presence of vocal fatigue was significantly associated with yelling/speaking loudly (OR=2.2; P=0.013), speaking excessively (OR=2.4; P=0.023), difficulty to open th... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134496 Mon, 12 Jan 2009 00:00:00 +0100 3134496 http://www.medworm.com/index.php?rid=3134494&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970800074X%2Fabstract%3Frss%3Dyes Summary: The use of hard-walled narrow tubes, often called resonance tubes, for the purpose of voice therapy and voice training has a historical precedent and some theoretical support, but the mechanism of any potential benefit from the application of this technique is not well understood. Fifteen vocally untrained male participants produced a series of spoken /ɑ/ vowels at a modal pitch and constant loudness, before and after a minute of repeated phonation into a 50-cm hard-walled glass tube at the same pitch and loudness targets. Electroglottography was used to measure the glottal contact quotient (CQ) during each phase of the experiment. Single-subject analysis revealed statistically significant changes in CQ during tube phonation, but with no discernable pattern across the 15 particip... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134494 Mon, 12 Jan 2009 00:00:00 +0100 3134494 http://www.medworm.com/index.php?rid=3134493&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000684%2Fabstract%3Frss%3Dyes Summary: This paper evaluates the capabilities of the Glottal to Noise Excitation Ratio for the screening of voice disorders. A lot of effort has been made using this parameter to evaluate voice quality, but there do not exist any studies that evaluate the discrimination capabilities of this acoustic parameter to classify between normal and pathological voices, and neither are there any previous studies that reflect the normative values that could be used for screening purposes. A set of 226 speakers (53 normal and 173 pathological) taken from a voice disorders database were used to evaluate the usefulness of this parameter for discriminating normal and pathological voices. To evaluate this parameter, the effect of the bandwidth of the Hilbert envelopes and the frequency shift have been an... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134493 Mon, 12 Jan 2009 00:00:00 +0100 3134493 http://www.medworm.com/index.php?rid=2952182&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000696%2Fabstract%3Frss%3Dyes Summary: The aim of the present paper was to evaluate the possible impact of methacholine challenge on the voice and vocal tract in 10 patients reporting hoarseness due to presumable hyperreactivity to some environmental factors. Ten age and gender-matched healthy subjects served as controls. Methacholine was used for hypersensitivity challenge and saline solution (0.9% NaCl) as control substance. Subjects were examined on two separate challenge occasions testing either methacholine in increasing doses (3, 6, 12 mg) or NaCl. Voice recordings, videolaryngoscopy, and measurement of nasal secretion were performed before and after each sniffing session. Subjective complaints were documented. Data were statistically analyzed with three-way analysis of variance and group comparisons performed. P... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952182 Mon, 12 Jan 2009 00:00:00 +0100 2952182 http://www.medworm.com/index.php?rid=3367611&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708001148%2Fabstract%3Frss%3Dyes Summary: Amyloidosis constitutes a fraction of 1% of benign localized laryngeal tumors and may occasionally be associated with systemic disease. A chronic, insidious, progressive, recurrent disease characterized by hoarseness, dyspnea, and stridor, it is caused by extracellular deposition of insoluble, abnormal tissue injurious fibrils. Submucosal lesions occur frequently in the vestibular folds and ventricles, less commonly in the subglottis and aryepiglottic folds and least on the vocal folds. Apple green birefrigence under polarized light after Congo red staining, electron microscopic fibrillar structure, and a β-pleated sheet structure observed by x-ray diffraction are confirmatory. Two presented cases add to the small literature review of similar patients. Case 1 was a 70-year-old ma... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367611 Mon, 29 Dec 2008 00:00:00 +0100 3367611 http://www.medworm.com/index.php?rid=3367610&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970800132X%2Fabstract%3Frss%3Dyes Summary: Laryngeal electromyography (LEMG) is a valuable adjunct in clinical management of patients with voice disorders. LEMG is valuable in differentiating vocal fold paresis/paralysis from cricoarytenoid joint fixation. Our data indicate that visual assessment alone is inadequate to diagnose neuromuscular dysfunction in the larynx and that diagnoses based on vocal dynamics assessment and strobovideolaryngoscopy are wrong in nearly one-third of cases, based on LEMG results. LEMG has also proven valuable in diagnosing neuromuscular dysfunction in some dysphonic patients with no obvious vocal fold movement abnormalities observed during strobovideolaryngoscopy. Review of 751 patients suggests that there is a correlation between the severity of paresis and treatment required to achieve satis... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367610 Mon, 29 Dec 2008 00:00:00 +0100 3367610 http://www.medworm.com/index.php?rid=3134491&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000635%2Fabstract%3Frss%3Dyes This study aimed to investigate the role of voice source and formant frequencies in the perception of emotional valence and psychophysiological activity level from short vowel samples (∼150 milliseconds). Nine professional actors (five males and four females) read a prose passage simulating joy, tenderness, sadness, anger, and a neutral emotional state. The stress carrying vowel [a:] was extracted from continuous speech during the Finnish word [ta:k:ahan] and analyzed for duration, fundamental frequency (F0), equivalent sound level (Leq), alpha ratio, and formant frequencies F1–F4. Alpha ratio was calculated by subtracting the Leq (dB) in the range 50Hz–1kHz from the Leq in the range 1–5kHz. The samples were inverse filtered by Iterative Adaptive Inverse Filtering and the estimates... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134491 Mon, 29 Dec 2008 00:00:00 +0100 3134491 http://www.medworm.com/index.php?rid=2952179&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000672%2Fabstract%3Frss%3Dyes The objective of the study was to analyze comparatively the jitter and shimmer values of spoken voice among women in menacme and menopausal women using or not hormonal replacement therapy (HRT). Forty-five women were studied, divided into the following groups: Control Group (CG), 15 women aged 20–40 years with regular menstrual cycles who did not take hormonal contraceptives; Treated Group (TG), 15 women aged 45–60 years with at least 2 years of menopause, under continuous HRT with1 mg estradiol valerate + 90 μg norgestimate per day for at least 6 months; Untreated Group (UG), 15 women aged 45–60 years with at least 2 years of menopause who did not use HRT. Mean age was 30.3, 54.5, and 56.5 years for CG, TG, and UG, respectively. All subjects were submitted to acoustic analysis of j... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952179 Mon, 29 Dec 2008 00:00:00 +0100 2952179 http://www.medworm.com/index.php?rid=2952175&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000507%2Fabstract%3Frss%3Dyes We present converging evidence that clinical protocols directed at facilitating vocal fold epithelial ion and fluid transport may benefit healthy speakers, those with voice disorders, and those at risk for voice disorders. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952175 Mon, 29 Dec 2008 00:00:00 +0100 2952175 http://www.medworm.com/index.php?rid=3134497&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000702%2Fabstract%3Frss%3Dyes The objectives of this study were to determine the effect of musical background on both pitch discrimination abilities and the reliability of judging voice quality in dysphonic speakers, and to determine the relationship between pitch discrimination abilities and the reliability of voice quality judgments. Twenty musicians and 20 nonmusicians performed pitch discrimination tests. They also made judgments of dysphonic vowels and speech samples for breathiness and roughness using 100-mm visual analog scales. Musicians demonstrated significantly smaller pitch discrimination thresholds than nonmusicians. For measures of intrarater agreement, musicians were significantly more consistent than nonmusicians for judgments of breathiness in both vowels and speech produced by dysphonic speakers. Musi... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134497 Thu, 27 Nov 2008 00:00:00 +0100 3134497 http://www.medworm.com/index.php?rid=2952176&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000611%2Fabstract%3Frss%3Dyes Summary: The vibrato is one of the embellishments most frequently used in the singing voice and it can be found in different singing styles, among those, lyric and Sertanejo (Brazilian country western-like singing style). Considering these two styles, the objective of the present study was to analyze the production of vibrato in the singing voice in the lyric and sertanejo genres from an acoustic and perceptual viewpoint. Twenty male singers—10 classical (operatic) singers and 10 sertanejo singers—reportedly in perfect laryngeal health, served as subjects for this study. Digital recording of the subjects' voices was performed. For each phonation, acoustic analysis was carried out together with comparison of overtones and vibrato rate and extension measurements. The results have shown t... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952176 Fri, 21 Nov 2008 00:00:00 +0100 2952176 http://www.medworm.com/index.php?rid=3367609&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000969%2Fabstract%3Frss%3Dyes The objective was to culturally adapt and validate the Voice Handicap Index (VHI) to the Greek language. The study design used was a psychometric analysis. The VHI was translated into Greek with cultural adaptations to accommodate certain words. The translated version was then completed by 67 subjects with various voice disorders and by a control group of 79 subjects. All the participants also completed a self-rating scale regarding the severity of their voice disorder. Statistical analyses demonstrated high internal consistency and high test-retest reliability both for the overall VHI score and for the functional, physical, and emotional domains of the VHI. A moderate correlation was found between the VHI and the self-rating severity scale. The subjects in the control group had lower scor... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3367609 Wed, 27 Aug 2008 00:00:00 +0100 3367609 http://www.medworm.com/index.php?rid=2489638&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001385%2Fabstract%3Frss%3Dyes Summary: Treatment dropout is a consistent problem among behavior change therapies. A recent study by the authors demonstrated that 38% of patients did not attend a voice evaluation after referral by the otolaryngologist. Further, 47% of patients who attended a voice evaluation did not return for therapy. No previous study has set out to document completion/dropout rates for voice therapy, but high rates of attrition are reported as problematic within voice therapy research studies. The purpose of this study was to quantify the problem of voice therapy dropout over the course of voice therapy and to analyze factors that may predict dropout using a retrospective chart review. Data were collected at two voice centers and included demographics (gender, age, and race/ethnicity), quality-of-lif... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2489638 Sun, 03 Aug 2008 23:00:00 +0100 2489638 http://www.medworm.com/index.php?rid=2489634&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001099%2Fabstract%3Frss%3Dyes Summary: The present study tested suggestions in the literature that vocal breathiness may influence the perception of femininity of the speaker. Two listener experiments were conducted using normal and breathy voice productions by normal females. Panels of students rated femininity of samples from seven biological female speakers, each producing a normal /a/ and a breathy /a/ at similar pitch and intensity. Two listening experiments were enacted. In experiment 1, the 14 samples were presented at random to the judges as if they were from different speakers. Judges rated feminity on a five-point rating scale with 1 (little feminine) and 5 (very feminine) as left and right extremes, respectively. In experiment 2, the normal and breathy samples of each of the seven speakers were presented pai... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2489634 Sun, 03 Aug 2008 23:00:00 +0100 2489634 http://www.medworm.com/index.php?rid=2754207&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000064%2Fabstract%3Frss%3Dyes This study is the first in a series of investigations designed to test the acoustic characteristics of the normal Arabic voice. The subjects were three hundred normal Jordanian Arabic speakers (100 adult males, 100 adult females, and 100 children). The subjects produced a sustained phonation of the vowel /a:/ and stated their complete names (i.e. first, second, third and surname) using a carrier phrase. The samples were analyzed using the Multi Dimensional Voice Program (MDVP). Fundamental frequency (F0) from the /a:/ and speaking fundamental frequency (SF0) from the sentence were analyzed. Results revealed a significant difference of both F0 and SF0 values among adult Jordanian Arabic-speaking males (F0=131.34Hz ± 18.65, SF0=137.45 ± 18.93), females (F0=231.13Hz ± 20.86, SF0=230.84 ± ... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754207 Mon, 21 Jul 2008 23:00:00 +0100 2754207 http://www.medworm.com/index.php?rid=2952187&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000490%2Fabstract%3Frss%3Dyes Summary: Plasma cell myeloma, the most common plasma cell neoplasm, is characterized by the presence of multiple lesions in the bone marrow. A single isolated lesion may occur either in bone (solitary plasmacytoma of bone) or in soft tissue (extramedullary plasmacytoma). Most cases of extramedullary plasmacytoma occur in the head and neck region. The diagnosis is established by histopathology and immunohistochemistry. A detailed evaluation for lesions at other sites is recommended as extramedullary plasmacytoma treated by radiation therapy has better survival rates than plasma cell myeloma, which is treated by chemotherapy. A case of plasmacytoma of the larynx is presented highlighting clinical and histological features with a review of literature. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952187 Fri, 11 Jul 2008 00:00:00 +0100 2952187 http://www.medworm.com/index.php?rid=2952186&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000623%2Fabstract%3Frss%3Dyes We describe a case of a 15-year-old boy complaining of long-standing hoarseness and found to have bilateral mucosal bridges of the true vocal folds. Previous reports cite cases of a unilateral mucosal bridge. We believe this is the first reported case of bilateral mucosal bridges. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952186 Fri, 11 Jul 2008 00:00:00 +0100 2952186 http://www.medworm.com/index.php?rid=2952184&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000416%2Fabstract%3Frss%3Dyes The objectives of this study were to evaluate morphologic alterations and precancerous lesions in Reinke's edema. Patients included were 54 smokers with bilateral Reinke's edema submitted to surgery in the Otolaryngology Department, Botucatu Medical School, São Paulo State University, Brazil, between 2002 and 2006. All specimens were evaluated by light microscopy and five contralateral lesions were also evaluated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The main histological alterations were edema (100%), inflammation (81.48%), basal membrane (bm) thickening (77.77%), and vessel proliferation (75.92%). Epithelium alterations were classified as grade 0 (11.11%), grade 1 (70.37%), grade 2 (14.81%), and grade 3 (3.70%). In the case included in grade 3... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952184 Fri, 11 Jul 2008 00:00:00 +0100 2952184 http://www.medworm.com/index.php?rid=2952181&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000519%2Fabstract%3Frss%3Dyes The objective of this study was to examine Health Locus of Control in three patient groups: (1) Spasmodic Dysphonia, (2) Functional Dysphonia and (3) a nondysphonic group with Nonlaryngeal Dystonia. LoC was measured and compared in a total of 57 patients using the Multidimensional Health Locus of Control Scales (diagnostic specific) Form C. Internal, Chance, and Powerful others LoC were measured and comparisons were made using one-way analysis of variance. Contrary to expectations Internal LoC was found to be significantly higher in the Functional Dysphonia group when compared to the other two groups. There was no significant difference between the groups in Chance or Powerful others LoC. The two organic groups, Spasmodic Dysphonia and Nonlaryngeal Dystonia, were more alike in Internal Hea... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952181 Fri, 11 Jul 2008 00:00:00 +0100 2952181 http://www.medworm.com/index.php?rid=2952177&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000489%2Fabstract%3Frss%3Dyes Summary: Voice quality has mainly been studied in trained speakers, singers, and dysphonic patients. Few studies have concerned ordinary untrained university students' voices. In light of earlier studies of professional voice users, it was hypothesized that good, poor, and intermediate voices would be distinguishable on the basis of long-term average spectrum characteristics. In the present study, voice quality of 50 Finnish vocally untrained male university students was studied perceptually and using long-term average spectrum analysis of text reading samples of one minute duration. Equivalent sound level (Leq) of text reading was also measured. According to the results, the good and ordinary voices differed from the poor ones in their relatively higher sound level in the frequency range ... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952177 Fri, 11 Jul 2008 00:00:00 +0100 2952177 http://www.medworm.com/index.php?rid=2754216&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000143%2Fabstract%3Frss%3Dyes Summary: Current surgical techniques for laryngeal exposure pose distinct limitations. To address these issues, this article describes a novel surgical technique. Our technique, termed Transventricular Chondroplastic Laryngotomy, allows for extensive and direct external access to the endolarynx. This procedure is described in both a cadaver and animal models. Three pigs were submitted to thyroid cartilage window opening without touching the laryngeal ventricle, and seven animals were submitted to the full procedure, opening a thyroid cartilage window with wide ventricular opening. The animals were sacrificed 20 days following the procedure. Prior to sacrifice, all animals underwent laryngoscopic examination and following euthanasia, the larynx and cervical regions were examined grossly, in... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754216 Thu, 10 Jul 2008 23:00:00 +0100 2754216 http://www.medworm.com/index.php?rid=3134489&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000404%2Fabstract%3Frss%3Dyes Summary: An experimental study of the pressure distributions in an asymmetric larynx, hereafter referred to as a hemilarynx, was carried out at a glottal diameter of 0.04cm and transglottal pressures of 3, 5, 10, 20, and 40cm H2O. In each case, the glottal wall “on the left” was chosen to have an angle of 0° with the midline, and the angle of the glottal wall “on the right” was varied through converging angles of 5°, 10°, and 20° and diverging angles of 5°, 10°, and 20°. The case of two parallel glottal walls, or the uniform glottis, was also examined. With the exception of the 20° convergent case, the pressure distributions for most angles and pressures were bistable; that is, a stable flow situation persisted when the glottal exit flow jet was directed downstream either t... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134489 Mon, 09 Jun 2008 00:00:00 +0100 3134489 http://www.medworm.com/index.php?rid=2952185&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000465%2Fabstract%3Frss%3Dyes This study describes a vocal fold self-disruption that occurred on stage to a lead actor in the role of Richard III. The study design is as case presentation. A 43-year-old actor presented with a sudden voice loss that first occurred on stage after a series of presentations. He also had a cold-like condition that had not been treated. His past medical history included an average of ten cigarettes per day for ten years and a 10-year history of gastritis and stomach ulcer. Perceptual, acoustic, and laryngeal analyses were performed following pharmacological and voice therapy. Perceptual and acoustic analyses showed mild deviations whereas laryngeal visual examination revealed a complete right vocal fold detachment from the anterior commissure to the vocal process, with generalized hyperemia.... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952185 Mon, 09 Jun 2008 00:00:00 +0100 2952185 http://www.medworm.com/index.php?rid=2952183&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000428%2Fabstract%3Frss%3Dyes The objective of this study was to evaluate the effect of intranasal estrogen therapy on female vocal quality. Thirty-two women who had surgically induced menopause were included into the study group and examined through hall year for this study. Estrogen treatment was proposed to all of the patients. Twenty-three of them accepted the treatment protocols including oral (n=12) (2mg estradiol; Estrofem; Novo Nordisk, Denmark) and intranasal (n=11) (300mcg 17beta-estradiol; Aerodiol; Servier, Chambray-les-Tours, France) form of estrogen. The rest of patients refused estrogen treatment and those patients constituted the control group (n=9). Vocal changes were evaluated with Voice Handicap Index (VHI) and acoustic analysis of voice variations (fundamental frequency [F0], SD F0, jitter, shimmer... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952183 Mon, 09 Jun 2008 00:00:00 +0100 2952183 http://www.medworm.com/index.php?rid=2952178&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000441%2Fabstract%3Frss%3Dyes Summary: Traditionally, children's speaking and singing behaviors have been regarded as two separate sets of behaviors. Nevertheless, according to the voice-scientific view, all vocal functioning is interconnected due to the fact that we exploit the same voice and the same physiological mechanisms in generating all vocalization. The intension of the study was to investigate whether prepubertal children's speaking and singing behaviors are connected perceptually. Voice recordings were conducted with 60 10-year-old children. Each child performed a set of speaking and singing tasks in the voice experiments. Each voice sample was analyzed perceptually with a specially designed perceptual voice assessment protocol. The main finding was that the children's vocal functioning and voice quality in ... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952178 Mon, 09 Jun 2008 00:00:00 +0100 2952178 http://www.medworm.com/index.php?rid=2952174&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000453%2Fabstract%3Frss%3Dyes Summary: Current noninvasive measurement of subglottal pressure using airflow interruption often produces inconsistent results due to the elicitation of audio-laryngeal reflexes. Auditory feedback could be considered as a means of ensuring measurement accuracy and precision. The purpose of this study was to determine if auditory masking could be used with the airflow interruption system to improve intrasubject consistency. A prerecorded sample of subject phonation was played on a loop over headphones during the trials with auditory masking. This provided subjects with a target pitch and blocked out distracting ambient noise created by the airflow interrupter. Subglottal pressure was noninvasively measured using the airflow interruption system. Thirty subjects, divided into two equal groups... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952174 Mon, 09 Jun 2008 00:00:00 +0100 2952174 http://www.medworm.com/index.php?rid=2754212&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000039%2Fabstract%3Frss%3Dyes Summary: Female pastors are considered “heavy occupational voice users” and are at risk for developing vocal lesions, dysphonia, and/or vocal fatigue. However, there is no published information pertaining to the vocal characteristics of this group. Six participants completed a 31-item questionnaire that addressed health and lifestyle as well as self-perception of vocal characteristics and audio-recorded a complete sermon during a typical worship service. Subsequently, a 2-minute sample of each sermon was recorded on a compact disc (CD) for assessment by seven experienced listeners. In addition to obtaining ratings from the recorded sermons, the questionnaires were analyzed to examine specific vocal habits and the female pastor's perceptions of her own voice, specifically in terms of vo... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754212 Sun, 08 Jun 2008 23:00:00 +0100 2754212 http://www.medworm.com/index.php?rid=2574401&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001518%2Fabstract%3Frss%3Dyes This study, focused on the laryngeal source level, introduces the concept of laryngeal vibratory mechanism. Human phonation is characterized by the use of four laryngeal mechanisms, labeled M0–M3, as evidenced by the electroglottographic (EGG) study of the transition phenomena between mechanisms with a population of men and women, trained and untrained singers. Macroscopic and local descriptions of the EGG signal are analyzed during the production of glissandos and held notes with different mechanisms. The transition from one mechanism to another of higher rank is characterized by a jump in frequency, a reduction of EGG amplitude, and a change in the shape of the derivative of the EGG (which may correspond to a reduction of the vibratory mass). These characteristics are used to identify ... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574401 Sun, 08 Jun 2008 23:00:00 +0100 2574401 http://www.medworm.com/index.php?rid=3134490&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970800043X%2Fabstract%3Frss%3Dyes In this study, we focus on developing a method to effectively and efficiently process high-speed image data from excised larynges. However, in addition we show the clinical potential of this method by use of example high-speed image data obtained from a patient with vocal nodules.The proposed automatic image-processing algorithm may provide a valuable biomedical application for the clinical assessment of vocal disorders by use of high-speed digital imaging. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=3134490 Tue, 27 May 2008 00:00:00 +0100 3134490 http://www.medworm.com/index.php?rid=2952188&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000283%2Fabstract%3Frss%3Dyes Conclusions: the new suture technique is an easy procedure, which can be performed by a single surgeon under microscopic vision, with a low risk of tissue rupture. The technique does not markedly prolong the duration of surgery and a single suture thread can be used for the fabrication of more than one stitch. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952188 Tue, 27 May 2008 00:00:00 +0100 2952188 http://www.medworm.com/index.php?rid=2952173&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000295%2Fabstract%3Frss%3Dyes Summary: Previous research has used perturbation analysis methods to study the singing voice. Using perturbation and nonlinear dynamic analysis (NDA) methods in conjunction may provide more accurate information on the singing voice and may distinguish vocal usage in different styles. Acoustic samples from different styles of singing were compared using nonlinear dynamic and perturbation measures. Twenty-six songs from different musical styles were obtained from an online music database (Rhapsody, RealNetworks, Inc., Seattle, WA). One-second samples were selected from each song for analysis. Perturbation analyses of jitter, shimmer, and signal-to-noise ratio and NDA of correlation dimension (D2) were performed on samples from each singing style. Percent jitter and shimmer median values were... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952173 Tue, 27 May 2008 00:00:00 +0100 2952173 http://www.medworm.com/index.php?rid=2754220&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000258%2Fabstract%3Frss%3Dyes The objectives of this study are to describe central nervous system modulation associated with voice improvement following Type I thyroplasty in a patient with glottic insufficiency secondary to unilateral vocal fold paralysis. Serial functional magnetic resonance imaging scans were performed before as well as one and six months after thyroplasty. Paradigms consisting of four voice production tasks and a motor control task were completed. Volumes of activation within regions activated during each task were measured. Acoustic and aerodynamic measures were also obtained. A widespread network of neural activations was shown for all tasks. Differences in volumes of activation 1-month postsurgery positively correlated with acoustic and aerodynamic improvements. Sixth months following medializat... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754220 Mon, 26 May 2008 23:00:00 +0100 2754220 http://www.medworm.com/index.php?rid=2754208&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000155%2Fabstract%3Frss%3Dyes Summary: The incidence of dysphonia in healthy elderly people is high. In individuals with iatrogenic vocal-fold paresis following thyroid surgery, serious aggravation of vocal skills contributes to impaired quality of life and requires proper management. Electroglottography is a common method for providing noninvasive measurements of glottal activity, yielding reliable indicators of glottal closing instants. The purpose of the study was to determine how electroglottography measures change with voice recovery in elderly speakers with vocal-fold palsy, compared with healthy elderly individuals, and which coefficient best represents dysphonia. An electroglottograph with Speech Studio 1.04 software was used to record and analyze the data. Electroglottography data were collected from 12 patien... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754208 Mon, 26 May 2008 23:00:00 +0100 2754208 http://www.medworm.com/index.php?rid=2754205&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970800026X%2Fabstract%3Frss%3Dyes Summary: Previous studies suggest that singers modify articulation to avoid that the pitch frequency F0 exceeds the normal value of the first formant F1Normal. Using magnetic resonance imaging at a rate of 5 frames/s, articulation was analyzed in a professional soprano singing an ascending triad pattern from C4 to G5 (262–784Hz) on the vowels /i, e, u, o, a/. Lip and jaw opening and tongue dorsum height were measured and analyzed as function of pitch. Four or five semitones below the pitch where F0=F1Normal the tongue dorsum height was reduced in /i, e, u, a/, whereas in /o/ the lip opening was widened and in /a/ also the jaw opening was widened. At higher pitches, the jaw opening was widened in all vowels. These articulatory maneuvers are likely to raise F1 in these vowels. (Source: Jou... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754205 Mon, 26 May 2008 23:00:00 +0100 2754205 http://www.medworm.com/index.php?rid=2754217&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000167%2Fabstract%3Frss%3Dyes Summary: Lipoaugmentation is a treatment option for patients suffering from glottic insufficiency. Autologous fat is a nearly ideal material for vocal-fold augmentation from the view of biocompatibility and viscoelasticity, but there is still the problem of high graft resorption. As distribution and biological behavior of fatty tissue is very different in the human body, the aim of the study was to elucidate possible donor sites with respect to the quantity of harvested fat, the surgical accessibility to the region, the donor site morbidity and possibility of aesthetic defects and the quality of harvested tissue. Possible donor sites for harvesting were examined by magnetic resonance imaging in thirty-five patients with special emphasis to the buccal fat pad, the neck, the dorsolateral sid... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754217 Thu, 15 May 2008 23:00:00 +0100 2754217 http://www.medworm.com/index.php?rid=2952180&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000088%2Fabstract%3Frss%3Dyes We examined tonal samples of 42 Vietnamese female primary school teachers diagnosed with MTD and compared them with 30 vocally healthy female teachers who spoke the same dialect. Tonal data were analyzed using Computerized Speech Lab (CSL-4300B) for Windows. From tonal sampling bases, fundamental frequency (F0) was measured at target points specified by contour examination. Parameters representing pitch movement including time, size, and speed of movement were measured for the falling tone and rising tone. We found that F0 at target points in MTD group was lowered in most tones, especially tones with extensive F0 variation. In MTD group, target F0 of the broken tone in isolation was 37.5Hz lower (P (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2952180 Tue, 13 May 2008 00:00:00 +0100 2952180 http://www.medworm.com/index.php?rid=2754219&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000271%2Fabstract%3Frss%3Dyes Summary: Bilateral vocal fold abductor paralysis was seen in a patient with Creutzfeldt-Jacob disease. After tracheotomy, the patient showed disappearance of reduced oxygen saturation with high-pitched inspiratory stridor and pulling phenomenon of the supraclavicular region and larynx. Electromyographic examinations of the intrinsic laryngeal muscles, including the thyroarytenoid and posterior cricoarytenoid muscles, demonstrated that there was no apparent action potential in those muscles during spontaneous respiratory movements, and there was no abnormal potential for those muscles at rest. By pushing the infrasternal region of the patient on the expiration, normal motor unit action potential could be seen in the posterior cricoarytenoid muscle on the next inspiration. Based on those fin... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754219 Mon, 12 May 2008 23:00:00 +0100 2754219 http://www.medworm.com/index.php?rid=2754218&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000106%2Fabstract%3Frss%3Dyes We describe what appears to be the first case in the medical literature of sarcoidosis presenting as isolated, bilateral true vocal cord paralysis resulting from compressive bilateral mediastinal adenopathy. The presenting symptoms, clinical outcome, radiographs and laryngeal findings are discussed in detail. Sarcoidosis should therefore be added to the differential diagnosis of bilateral vocal fold paralysis. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754218 Mon, 12 May 2008 23:00:00 +0100 2754218 http://www.medworm.com/index.php?rid=2754215&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970800009X%2Fabstract%3Frss%3Dyes Summary: The aim of this study was to evaluate changes in acoustic features of speech after tonsillectomy and to establish concepts of patient management and rational therapeutic approach. Before and 1 month after surgery, phonetically balanced sentences and sustained vowels a, e, i were carried out and digitalized with Multi-Dimensional Voice Program (Kay Elemetrics, Lincoln Park, NJ) in all the patients, as an evaluation of nasal resonance, speech articulation, and voice handicap index (VHI). These parameters were estimated: average of fundamental frequency, Jitter percent, Shimmer, noise-to-harmonics ratio, voice turbulence index, soft phonation index, degree of voiceless, degree of voice breaks, and peak amplitude variation. Our data showed that 1 month after tonsillectomy, improvement... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754215 Mon, 12 May 2008 23:00:00 +0100 2754215 http://www.medworm.com/index.php?rid=2754214&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970800012X%2Fabstract%3Frss%3Dyes Conclusion: Functionally orientated surgery of the larynx requires exact knowledge of the anatomy and landmarks of the laryngeal skeleton. Topographic relations and dimensions between the thyroid and cricoid cartilages play an important role in cricoid approximation. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754214 Mon, 12 May 2008 23:00:00 +0100 2754214 http://www.medworm.com/index.php?rid=2754210&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000131%2Fabstract%3Frss%3Dyes Summary: Previous research has shown that inexperienced listeners have a more difficult time identifying an oddball singer in a three-note task where two sung stimuli are produced by the same singer and one sung stimulus is produced by an oddball singer than they do in a six-note task where five sung stimuli are produced by the same singer and one sung stimulus is produced by the oddball singer. Such results support the idea that timbre should be understood as a transformation that connects the different sounds of one source, that a “rich” set of sounds is necessary to discover the trajectory. The role of listener experience in perceiving the trajectory, however, is unknown. This paper investigated the ability of experienced listeners to identify which pitch in an ascending or descendi... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754210 Mon, 12 May 2008 23:00:00 +0100 2754210 http://www.medworm.com/index.php?rid=2754204&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000118%2Fabstract%3Frss%3Dyes Conclusion: One possible reason for this would be that the musical theatre singers use formant frequencies more similar to those occurring in normal speech. Another reason could be that the formant transitions characterizing the consonants were considerably slower in the case of the musical theatre singers than in the case of the operatic singers. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754204 Mon, 12 May 2008 23:00:00 +0100 2754204 http://www.medworm.com/index.php?rid=2754202&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000076%2Fabstract%3Frss%3Dyes Summary: Lung function influences voice quality. The aim of this study was to determine if there was a link between subjective voice pathology and peak flow in patients newly presenting with voice problems. A prospective, multigroup study design was designed, with three groups:Fifty general ENT patients, 50 voice pathology patients, and 26 asthmatics were included. Peak flow and Voice Handicap Index (VHI) were measured in all subjects. Analysis of the correlation between VHI and percentage of expected peak flow showed a small correlation between the two for voice pathology patients (r=−0.304, P=0.016). No significant correlation was found for the other two groups. These results do not justify the routine measurement of peak flow in all voice clinic patients, but suggest that peak flow me... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754202 Mon, 12 May 2008 23:00:00 +0100 2754202 http://www.medworm.com/index.php?rid=2574409&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970700207X%2Fabstract%3Frss%3Dyes Summary: The association between gastroesophageal reflux disease (GERD) and extraesophageal symptoms is poorly understood and difficult to document. pH monitoring in this group of patients has resulted in conflicting data due to lack of diagnostic sensitivity. Recently, a new sensitive pH device for detection of liquid and aerosolized droplets in the oropharynx (The Dx–pH Measurement System [Dx–pH]) has become available. Our hypothesis is that we will be able to improve our ability to identify and understand this group of patients with this device. The aim of this preliminary observation study was to compare the results of this new device to the standard esophageal and pharyngeal pH probes in a small group of patients with extraesophageal symptoms. Patients with suspected extraesophage... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574409 Mon, 12 May 2008 23:00:00 +0100 2574409 http://www.medworm.com/index.php?rid=2574405&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000027%2Fabstract%3Frss%3Dyes Summary: A questionnaire investigating the levels of interest in and knowledge of vocal function and dysfunction was completed by 129 singers. Those with professional singing experience indicated significantly greater interest and higher perceived knowledge levels than amateurs in areas of vocal anatomy and physiology, vocal hygiene, and functional vocal pathologies. Greater interest levels, but not higher perceived knowledge levels were reported by professional singers (PSs) in the area of the role of the speech-language pathologist (SLP) and the voice. Professionals answered significantly more knowledge-based questions correctly than amateurs in all areas except the role of the SLP and the voice. However, findings indicated wide variability in knowledge levels of both groups. Singing tea... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574405 Mon, 12 May 2008 23:00:00 +0100 2574405 http://www.medworm.com/index.php?rid=2489637&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001397%2Fabstract%3Frss%3Dyes Summary: This paper forms part of a larger study into the nature of singing development in children and examines gender differences in long-term average spectra (LTAS). Three hundred and twenty children in age groups 4–11 years learned a song and were then recorded singing alone. LTAS curves were calculated for each voice. Age of each singer was estimated and gender attributed by a panel of independent listeners. Rate of gender identification (71%) was consonant with that reported for children's speech. Progressive statistically significant shifts of spectral energy as a function of increasing age (reported in a previous study) were found to be present in the data for both genders, but the developmental timetable over which the changes took place was earlier for girls than for boys. A th... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2489637 Mon, 12 May 2008 23:00:00 +0100 2489637 http://www.medworm.com/index.php?rid=2754211&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001555%2Fabstract%3Frss%3Dyes Summary: The purpose of this investigation was to study children's exposure to background noise at the ears during a normal day at the day care center and also to relate this to a perceptual evaluation of voice quality. Ten children, from three day care centers, with no history of hearing and speech problems or frequent infections were selected as subjects. A binaural recording technique was used with two microphones placed on both sides of the subject's head, at equal distance from the mouth. A portable digital audio tape (DAT) recorder (Sony TCD-D 100, Stockholm, Sweden) was attached to the subject's waist. Three recordings were made for each child during the day. Each recording was calibrated and started with three repetitions of three sentences containing only sonorants. The recording ... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754211 Mon, 05 May 2008 23:00:00 +0100 2754211 http://www.medworm.com/index.php?rid=2574406&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001798%2Fabstract%3Frss%3Dyes Summary: The efficacy of High-Frequency Chest Compression (HFCC) airway clearance therapy is linked to the induced-peak expiratory airflow pulse (IPEF) at the patient's mouth. The authors' goal was to determine the conditions that yield the highest IPEF using HFCC running at 6Hz in conjunction with voicing intervention. A pilot experimental study was conducted in a laboratory setting. Six adults with moderate to mild cystic fibrosis (CF) and 10 healthy adults participated. When the component characteristics of voicing were disregarded in data analysis of four conditions, voicing only intervention (V1I0), HFCC only intervention (V0I1), voicing intervention and HFCC intervention combinations (V1I1) and nonintervention (V0I0), V0I1 had significantly higher (P (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574406 Mon, 05 May 2008 23:00:00 +0100 2574406 http://www.medworm.com/index.php?rid=2574403&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707002068%2Fabstract%3Frss%3Dyes In this study, we examined whether and how this voice disorder affected acoustically and perceptually the characteristics of tones in Vietnamese teachers. Voice data were obtained from 42 Vietnamese female primary school teachers diagnosed with MTD and 30 vocally healthy teachers. Tonal data were analyzed using Computerized Speech Lab (CSL-4300B) and Speech Analyzer. Parameters analyzed included the two most important acoustic cues in Vietnamese tones, that is, tonal fundamental frequency (F0) and laryngealization. Tonal F0 was assessed using a factorial analysis of variance with group and career durations as independent variables. Tonal samples were also perceptually assessed by a panel of native speakers of the same dialect. The results showed that MTD lowered tonal F0 in high tones and ... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574403 Mon, 05 May 2008 23:00:00 +0100 2574403 http://www.medworm.com/index.php?rid=2754213&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001804%2Fabstract%3Frss%3Dyes This study aimed to investigate perceptually and acoustically Lessac's Y-Buzz and sustained productions of Brazilian Portuguese habitual /i/ vowels pre- and posttraining and to verify the presence of formant tuning and its association with the perception of a more resonant voice. The subjects of this study were 54 acting students, 31 female and 23 male, with no voice problems, distributed in seven groups. Each group received four weekly sessions of training. For the pretraining recording, they were asked to sustain the vowel /i/ in a habitual mode three times at self-selected comfortable frequencies and intensity. After training, they repeated the habitual /i/ and also the trained Y-Buzz. Five voice specialists rated how resonant each sample sounded. The fundamental frequency (F0), the fir... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754213 Mon, 14 Apr 2008 23:00:00 +0100 2754213 http://www.medworm.com/index.php?rid=2754209&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000040%2Fabstract%3Frss%3Dyes This study was designed to determine the relative effectiveness of specific versus combined warm-up strategies on the voice by group comparison. Twenty participants, 10 male and 10 female actors, completed two warm-up protocols, at least 1 week apart, in a counter-balanced order. Measures of phonation threshold pressure (PTP), jitter, noise-to-harmonics-ratio (NHR), and self-perceived vocal effort were obtained. For the males, there was no significant difference in PTP difference values between vocal warm-up only (specific) and vocal plus aerobic warm-up (combined) conditions. For the females, however, a significant difference was found, with a greater reduction in PTP in the combined warm-up condition. A significant difference was also found in male jitter percent values, with significant... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754209 Mon, 14 Apr 2008 23:00:00 +0100 2754209 http://www.medworm.com/index.php?rid=2574400&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001750%2Fabstract%3Frss%3Dyes Summary: The purpose of this study was to examine the algorithm-measuring capabilities used in the Time-Frequency Analysis Software Program for 32-bit Windows (TF32) for measuring fundamental frequency (F0), its dependent measures, and signal-to-noise ratio (SNR). The stability, accuracy, and linearity of its algorithm to systematic changes in aspiration noise and/or spectral slope (to mimic the perceptual characteristics of breathiness, roughness, and hoarseness) were evaluated using its analysis output to five female and five male synthesized voices. TF32 was used to calculate F0, Jitter%, Shimmer%, and SNR for each of the synthesized signals. The findings indicate that although TF32 produced stable results for male synthesized samples, they were not accurate when measuring F0, Jitter%, ... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574400 Mon, 14 Apr 2008 23:00:00 +0100 2574400 http://www.medworm.com/index.php?rid=2489633&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001336%2Fabstract%3Frss%3Dyes Summary: Esophageal voice is a method of voice production after total laryngectomy. Previous research suggests that perturbation analysis may inaccurately measure aperiodic voices and that nonlinear dynamic methods may be more appropriate for analyzing signals of this type. Therefore, we hypothesized that nonlinear dynamic analysis would be more capable than perturbation parameters for reliable measurement of the aperiodic esophageal voice. The study design was acoustic comparison of esophageal and normal voice cohorts using nonlinear dynamic and perturbation measures. Twenty subjects in two age-matched groups participated in the study. Jitter, shimmer, signal-to-noise ratio (SNR), correlation dimension, and second-order entropy were measured from audio recordings of subjects' voices. Jitt... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2489633 Mon, 14 Apr 2008 23:00:00 +0100 2489633 http://www.medworm.com/index.php?rid=2754203&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199708000052%2Fabstract%3Frss%3Dyes Summary: The vertical larynx position has significant effects on vocal tract resonances and on the biomechanical properties of the vocal folds. It is generally agreed that the larynx should be kept in a comfortably low position during singing, and voice problems are often associated with a habitually raised larynx. A new method, and a battery operated portable device called Laryngoaltimeter, was developed to control laryngeal height continuously for therapeutic or educational purposes. Two similar condenser microphones attached on the suprasternal notch and supraglottic region were used to capture corresponding vibrations during phonation. The microphone signals were then filtered through a band pass filter (90–240Hz), digitized, and compared to each other by detection algorithms of the ... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2754203 Sun, 06 Apr 2008 23:00:00 +0100 2754203 http://www.medworm.com/index.php?rid=2574404&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001762%2Fabstract%3Frss%3Dyes Summary: The purpose of this exploratory study was to examine the relationship between undergraduate vocal music majors' diction acquisition abilities for singing in a nonnative language (as rated both by themselves and by their studio voice teachers) and their scores on an objective test of phonemic and stress perception. Ten students with varying levels of university voice training served as participants. The results showed significant negative correlations between each of the teachers' four ratings and the students' scores on the phonemic awareness subtest. In addition, 20% of the students demonstrated evidence of underdeveloped phonemic awareness skills, as indicated by their below average test performance. Considerable individual differences were also observed in the students' abiliti... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574404 Sun, 06 Apr 2008 23:00:00 +0100 2574404 http://www.medworm.com/index.php?rid=2574399&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001890%2Fabstract%3Frss%3Dyes Summary: Students admitted to the solo singing education at the University of Music Dresden, Germany have been submitted to a detailed physical examination of a variety of factors with relevance to voice function since 1959. In the years 1959–1991, this scheme of examinations included X-ray profiles of the singers' vocal tracts. This material of 132 X-rays of voice professionals was used to investigate different laryngeal morphological measures and their relation to vocal fold length. Further, the study aimed to investigate if there are consistent anatomical differences between singers of different voice classifications. The study design used was a retrospective analysis. Vocal fold length could be measured in 29 of these singer subjects directly. These data showed a strong correlation w... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574399 Sun, 06 Apr 2008 23:00:00 +0100 2574399 http://www.medworm.com/index.php?rid=2574398&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001816%2Fabstract%3Frss%3Dyes Summary: Vocal fold scarring remains a significant problem. Although several animal models have been developed to improve our understanding of the histopathology, the histologic features of scarred human vocal folds have rarely been reported. The present case studies aimed to define the histologic changes of scarred human vocal folds caused by cordectomy or cordotomy. Ten patients with the scarred vocal folds were involved in this study. Nine patients with early glottic cancer underwent endoscopic cordectomy, and one patient underwent superficial cordotomy for idiopathic scar. The postcordectomy or cordotomy scar was biopsied or resected 3–13 months after the original procedure. After confirming absence of any tumor in cancer patients, the remaining specimens were used in the present stu... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574398 Sun, 06 Apr 2008 23:00:00 +0100 2574398 http://www.medworm.com/index.php?rid=2574412&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001543%2Fabstract%3Frss%3Dyes Summary: In this case study, a retrospective review of chart and literature was done to discuss the presentation and treatment of granular cell tumors of the larynx. One patient was diagnosed and treated successfully with surgical resection of a laryngeal granular cell tumor. Excellent voice recovery was obtained and there is no evidence of recurrence 6 months after surgery. Granular cell tumors should be considered in the differential diagnosis of laryngeal masses, particularly in the posterior glottis. (Source: Journal of Voice) Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574412 Mon, 17 Mar 2008 00:00:00 +0100 2574412 http://www.medworm.com/index.php?rid=2574411&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001592%2Fabstract%3Frss%3Dyes Summary: Reinke's space is a highly specific structure critical for the function of the vocal fold, involved in a majority of pathological changes of the larynx. The aim of the study was to contribute to the understanding of edematous areas of vocal fold mucosa in patients with Reinke's edema using contact telescopy (ConTel). The edematous tissue which could be identified grossly by microlaryngoscopy under general anesthesia was stained topically with methylene blue and then examined using ConTel. The observed changes on contact images were further correlated with corresponding histological sections of biopsied edematous tissue. In patients with Reinke's edema examined using ConTel, we observed longitudinal arranged mucosal “blue lines” (BL). In the histological sections of edematous t... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574411 Mon, 17 Mar 2008 00:00:00 +0100 2574411 http://www.medworm.com/index.php?rid=2574410&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001609%2Fabstract%3Frss%3Dyes Summary: The impact of sustained inhaled corticosteroid (ICS) therapy on the larynx and pharynx was assessed using a prospective, cross-sectional, and investigator-blinded study conducted at the University Hospital Aintree, Liverpool, UK. Forty-six adults recruited from two local general practices and from general ENT clinics at our University hospital were investigated for the study. Patients were allocated to three groups according to ICS use. Laryngeal effects were measured by correlating the results of a vocal performance questionnaire, a respiratory symptom questionnaire, and measurements obtained by computerized speech analysis. Sustained vowels and connected speech were analyzed in normal and asthmatic subjects. Acoustic analysis was correlated with cellular markers of inflammation ... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574410 Mon, 17 Mar 2008 00:00:00 +0100 2574410 http://www.medworm.com/index.php?rid=2574407&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001786%2Fabstract%3Frss%3Dyes Summary: The study aims to investigate the vocal symptoms and acoustic changes in pregnant women pre- and postpartum in comparison to the controls. A total of 25 pregnant women who presented for delivery were enrolled in this study. Twenty-one nonpregnant women were matched as controls. Vocal symptoms such as hoarseness, vocal fatigue, and aphonia were assessed. Acoustic analysis included fundamental frequency (F0), habitual pitch, relative average perturbation (RAP), shimmer, noise-to-harmony ratio (NHR), and maximum phonation time (MPT). There were no significant differences in the incidence of vocal symptoms in pregnant women versus controls. However, vocal fatigue was more prevalent in the pregnant group. With respect to the acoustic parameters, there was a significant decrease in the ... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574407 Mon, 17 Mar 2008 00:00:00 +0100 2574407 http://www.medworm.com/index.php?rid=2489641&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970700152X%2Fabstract%3Frss%3Dyes Summary: A previous study, published in the Journal of Voice in 2003, revealed that a majority of teachers of Music Theater (MT), a style of Contemporary Commercial Music (CCM), had little professional experience and little formal training in vocal pedagogy for this style. Those who did indicate that they had had training did not describe the training nor quantify it in any manner. To ascertain what type of training was available for CCM in general and MT, in particular, a follow-up study seemed warranted. A new questionnaire was developed which asked for further information from teachers of MT in several areas including performance experience, training methods, teaching philosophy, the use of terminology, knowledge of voice science and medicine, and other parameters. Responses were gather... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2489641 Mon, 17 Mar 2008 00:00:00 +0100 2489641 http://www.medworm.com/index.php?rid=2489639&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS089219970700135X%2Fabstract%3Frss%3Dyes In this study, modality refers to whether the anchor is presented auditorily, visually via a written definition (a textual anchor), or a combination of both anchor types. A randomized multigroup comparison was performed. Forty inexperienced judges were selected to rate 36 sustained vowel voice samples of various voice types (ie, normal, breathy, hoarse, and rough) in terms of perceived vocal severity using four different methods (No Anchor, Textual Anchor, Auditory Anchor, and Combined Textual/Auditory Anchors). Subjects were randomly assigned to one of the four conditions. Before the rating task, all subject groups received a brief training sessions (15–20 minutes in duration) in which voice quality type and severity definitions were provided and representative voice samples were listen... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2489639 Mon, 17 Mar 2008 00:00:00 +0100 2489639 http://www.medworm.com/index.php?rid=2489635&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001178%2Fabstract%3Frss%3Dyes This study aimed to investigate the effect from emotional stimulus on the correlation between intercostal (INT)/abdominal (rectus abdominis [RC], lateral abdomen [OBL], and lower lateral abdomen [LOBL]) muscle activity and trunk wall (upper thorax [UTX], lower thorax [LTX], and abdomen [ABD]) movement. An electromyographic (EMG) activity was recorded from the INT, RC, OBL, and LOBL sites. UTX, LTX, and ABD movement were traced with three strain gauge sensors. Recordings were compared between singing with emotional stimulus (ES) and without emotional stimulus (NES). Muscle activity was recorded by use of an ambulatory four-channel monitoring system (Physiometer PHY 400, Premed, Norway). Seven advanced student singers (three males and four females) participated as subjects. Four sample perfo... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2489635 Mon, 17 Mar 2008 00:00:00 +0100 2489635 http://www.medworm.com/index.php?rid=2489631&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001324%2Fabstract%3Frss%3Dyes Summary: Understanding pediatric voice development and laryngeal pathology is predicated on a detailed knowledge of the microanatomy of the layered structure of the vocal fold. Our current knowledge of this microanatomy and its temporal evolution is limited by the lack of pediatric specimen availability. By providing the capability to image pediatric vocal folds in vivo, a noninvasive microscopy technique could greatly expand the existing database of pediatric laryngeal microanatomy and could furthermore make longitudinal studies possible. A variety of natural-contrast optical imaging technologies, including optical frequency domain imaging (OFDI), full-field optical coherence microscopy (FF-OCM), and spectrally encoded confocal microscopy (SECM) have been recently developed for noninvasiv... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2489631 Mon, 17 Mar 2008 00:00:00 +0100 2489631 http://www.medworm.com/index.php?rid=2489645&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001403%2Fabstract%3Frss%3Dyes Summary: A retrospective chart review was performed at the senior author's voice disorder clinic to report the symptoms, signs, and laryngeal electromyography (LEMG) data of patients presenting with vocal fold paresis (VFP) in a tertiary laryngology academic practice over a 4-year period. Medical records of 739 patients presenting to the clinic with a chief complaint of dysphonia (for 2000–2004) were assessed. History intake forms, strobovideolaryngoscopy images, and LEMG reports were reviewed for all patients with a clinical diagnosis of VFP. Of the 739 patients presenting to the clinic with voice complaints, 195 were initially diagnosed with either vocal fold paralysis or VFP (26.4%). Only 13 out of 739 patients (1.8%) with voice complaints were diagnosed with LEMG-confirmed unilateral... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2489645 Mon, 10 Mar 2008 00:00:00 +0100 2489645 http://www.medworm.com/index.php?rid=2574408&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001567%2Fabstract%3Frss%3Dyes Summary: The study aims to investigate if a similar interaction between physical appearance and voice could be found in female-to-male transsexuals as had been observed in male-to-female transsexuals. A panel of judges rated “maleness” of seven female-to-male transsexuals from video-recorded speech samples using three modes of presentation: auditory-only presentation, visual-only presentation, and audiovisual presentation. For the group of transsexuals as a whole, no significant differences were found between scores given in the auditory-only mode or the visual-only mode and those given in the audiovisual mode. Analysis of individual results, however, yielded significant differences in some individuals and there was some relation with hormone treatment. There was no significant correla... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574408 Tue, 04 Mar 2008 00:00:00 +0100 2574408 http://www.medworm.com/index.php?rid=2574402&cid=s_38548_16_f&fid=38548&url=http%3A%2F%2Fwww.jvoice.org%2Farticle%2FPIIS0892199707001300%2Fabstract%3Frss%3Dyes Summary: Trained singers (TS) generally demonstrate accurate pitch matching, but this ability varies within the general population. Pitch-matching accuracy, given increasing silence intervals of 5, 15, and 25 seconds between target tones and vocal matches, was investigated in TS and untrained individuals. A relationship between pitch discrimination and pitch matching was also examined. Thirty-two females (20–30 years) were grouped based on individual vocal training and performance in an immediate pitch-matching task. Participants matched target pitches following time delays, and completed a pitch discrimination task, which required the classification of two tones as same or different. TS and untrained accurate participants performed comparably on all pitch-matching tasks, while untrained... Journal of Voice journals http://www.medworm.com/rss/comments.php?id=2574402 Tue, 04 Mar 2008 00:00:00 +0100 2574402