Journal of Sleep Research
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A cohort study of the prevalence of sleep problems in adults with intellectual disabilities
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This study aims to determine the prevalence and associations of sleep problems in the adult population with ID. The 4-week period prevalence of sleep problems was determined in a cross-sectional study of all adults with ID in a defined geographical area. Sleep problems were identified using the Psychiatric Assessment Scale for Adults with Developmental Disabilities (PAS-ADD) checklist and categorized as initial insomnia, early morning wakening and broken sleep. A fourth, composite, variable of significant sleep problem was also derived. Of the 1023 adults with ID who participated, 9.2% had experienced a significant sleep p...
Source: Journal of Sleep Research - November 12, 2009 Category: Neurology Authors: AINSLIE BOYLE, CRAIG A. MELVILLE, JILL MORRISON, LINDA ALLAN, ELITA SMILEY, COLIN A. ESPIE, SALLY-ANN COOPER Source Type: journals
Sleep classification according to AASM and Rechtschaffen and Kales: effects on sleep scoring parameters of children and adolescents.Email this article to a colleague.
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Summary Recently, the new American Academy of Sleep Medicine (AASM) rules and the old Rechtschaffen and Kales (R&K) criteria for sleep scoring have been shown to produce significantly different results in adults. The aim of this study was to describe in detail such differences in a group of normal children. Polysomnographic recordings from 45 healthy children (18 females and 27 males) aged between 3 and 16 years were scored following both systems and the results compared. Several significant differences between the two scoring systems were found: N1 (AASM) was significantly higher than S1 (R&K) while Stages N2 ...
Source: Journal of Sleep Research - November 11, 2009 Category: Sleep Medicine Authors: Novelli L, Ferri R, Bruni O Tags: J Sleep Res Source Type: journals
The incidence and temporal patterning of insomnia: a pilot study.Email this article to a colleague.
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Summary To date very little research has been conducted on night-to-night variability in the incidence of insomnia. It is unclear from prior research whether subjects with primary insomnia (PI) exhibit good sleep (or better than average sleep) on some interval basis. In the present study, pilot data are provided on: (1) the frequency with which 'good sleep' occurs in subjects with PI; and (2) whether these events occur in a non-random manner. Ten subjects with PI participated in this 'naturalistic' study. All subjects completed daily sleep diaries for a minimum of 20 days. None of the subjects received treatment for th...
Source: Journal of Sleep Research - November 11, 2009 Category: Sleep Medicine Authors: Perlis ML, Swinkels CM, Gehrman PR, Pigeon WR, Matteson-Rusby SE, Jungquist CR Tags: J Sleep Res Source Type: journals
Plasma adiponectin level and sleep structures in children with Prader-Willi syndrome.Email this article to a colleague.
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Summary Adiponectin, an adipose tissue-derived hormone, has been negatively related to obstructive sleep apnea syndrome. Besides sleep apnea, children with Prader-Willi syndrome (PWS) may have excessive daytime sleepiness and rapid eye movement (REM) sleep abnormality. The aim of this study is to determine whether changes in sleep structures are related to plasma adiponectin levels in PWS. Correlations between adiponectin level and sleep variables were analyzed in 28 children with PWS and 18 controls. Overnight polysomnography was performed. The fasting plasma adiponectin levels were higher in the children with PWS tha...
Source: Journal of Sleep Research - November 11, 2009 Category: Sleep Medicine Authors: Joo EY, Hong SB, Sohn YB, Kwak MJ, Kim SJ, Choi YO, Kim SW, Paik KH, Jin DK Tags: J Sleep Res Source Type: journals
A cohort study of the prevalence of sleep problems in adults with intellectual disabilities.Email this article to a colleague.
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This study aims to determine the prevalence and associations of sleep problems in the adult population with ID. The 4-week period prevalence of sleep problems was determined in a cross-sectional study of all adults with ID in a defined geographical area. Sleep problems were identified using the Psychiatric Assessment Scale for Adults with Developmental Disabilities (PAS-ADD) checklist and categorized as initial insomnia, early morning wakening and broken sleep. A fourth, composite, variable of significant sleep problem was also derived. Of the 1023 adults with ID who participated, 9.2% had experienced a significant sleep p...
Source: Journal of Sleep Research - November 11, 2009 Category: Sleep Medicine Authors: Boyle A, Melville CA, Morrison J, Allan L, Smiley E, Espie CA, Cooper SA Tags: J Sleep Res Source Type: journals
Plasma adiponectin level and sleep structures in children with Prader–Willi syndromeEmail this article to a colleague.
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Adiponectin, an adipose tissue-derived hormone, has been negatively related to obstructive sleep apnea syndrome. Besides sleep apnea, children with Prader[ndash]Willi syndrome (PWS) may have excessive daytime sleepiness and rapid eye movement (REM) sleep abnormality. The aim of this study is to determine whether changes in sleep structures are related to plasma adiponectin levels in PWS. Correlations between adiponectin level and sleep variables were analyzed in 28 children with PWS and 18 controls. Overnight polysomnography was performed. The fasting plasma adiponectin levels were higher in the children with PWS than in t...
Source: Journal of Sleep Research - November 11, 2009 Category: Neurology Authors: EUN YEON JOO, SEUNG BONG HONG, YOUNG BAE SOHN, MIN JUNG KWAK, SU JIN KIM, YOUNG OK CHOI, SEON WOO KIM, KYUNG-HOON PAIK, DONG-KYU JIN Source Type: journals
The incidence and temporal patterning of insomnia: a pilot studyEmail this article to a colleague.
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To date very little research has been conducted on night-to-night variability in the incidence of insomnia. It is unclear from prior research whether subjects with primary insomnia (PI) exhibit good sleep (or better than average sleep) on some interval basis. In the present study, pilot data are provided on: (1) the frequency with which 'good sleep' occurs in subjects with PI; and (2) whether these events occur in a non-random manner. Ten subjects with PI participated in this 'naturalistic' study. All subjects completed daily sleep diaries for a minimum of 20 days. None of the subjects received treatment for their insomnia...
Source: Journal of Sleep Research - November 11, 2009 Category: Neurology Authors: MICHAEL L. PERLIS, CINDY M. SWINKELS, PHILIP R. GEHRMAN, WILFRED R. PIGEON, SARA E. MATTESON-RUSBY, CARLA R. JUNGQUIST Source Type: journals
Sleep classification according to AASM and Rechtschaffen and Kales: effects on sleep scoring parameters of children and adolescentsEmail this article to a colleague.
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Recently, the new American Academy of Sleep Medicine (AASM) rules and the old Rechtschaffen and Kales (R&K) criteria for sleep scoring have been shown to produce significantly different results in adults. The aim of this study was to describe in detail such differences in a group of normal children. Polysomnographic recordings from 45 healthy children (18 females and 27 males) aged between 3 and 16 years were scored following both systems and the results compared. Several significant differences between the two scoring systems were found: N1 (AASM) was significantly higher than S1 (R&K) while Stages N2 and R (AASM) were si...
Source: Journal of Sleep Research - November 11, 2009 Category: Neurology Authors: LUANA NOVELLI, RAFFAELE FERRI, OLIVIERO BRUNI Source Type: journals
Delayed blood pressure recovery after head-up tilting during sleep in preterm infantsEmail this article to a colleague.
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Dramatic changes in cardiovascular control occur in sleep during infancy, when sleep time is at a lifetime maximum. In infants born preterm there are significant cardiovascular complications later in life, and also an increased risk for sudden infant death syndrome (SIDS), possibly a result of inadequate compensation to a cardiorespiratory challenge in sleep. We aimed to examine the consequences of preterm birth on heart rate (HR) and blood pressure (BP) responses to head-up tilting (HUT) during sleep in infants. Preterm (n = 25) and term (n = 20) infants were studied using daytime polysomnography at 2[ndash]4 weeks', 2[nd...
Source: Journal of Sleep Research - November 5, 2009 Category: Neurology Authors: NICOLE B. WITCOMBE, STEPHANIE R. YIALLOUROU, ADRIAN M. WALKER, ROSEMARY S. C. HORNE Source Type: journals
Applying the quarter-hour rule: can people with insomnia accurately estimate 15-min periods during the sleep-onset phase?Email this article to a colleague.
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This study expands upon previous research with the aim of identifying whether people with insomnia can accurately perceive a 15-min interval during the sleep-onset period, and therefore successfully implements the QHR. A mixed models anova design was applied with between-participants factor of group (insomnia versus good sleepers) and within-participants factor of context (night versus day). Results indicated no differences between groups and contexts on time estimation tasks. This was despite an increase in arousal in the night context for both groups, and tentative support for the impact of arousal in inducing underestim...
Source: Journal of Sleep Research - November 4, 2009 Category: Sleep Medicine Authors: Harrow L, Espie C Tags: J Sleep Res Source Type: journals
Delayed blood pressure recovery after head-up tilting during sleep in preterm infants.Email this article to a colleague.
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Summary Dramatic changes in cardiovascular control occur in sleep during infancy, when sleep time is at a lifetime maximum. In infants born preterm there are significant cardiovascular complications later in life, and also an increased risk for sudden infant death syndrome (SIDS), possibly a result of inadequate compensation to a cardiorespiratory challenge in sleep. We aimed to examine the consequences of preterm birth on heart rate (HR) and blood pressure (BP) responses to head-up tilting (HUT) during sleep in infants. Preterm (n = 25) and term (n = 20) infants were studied using daytime polysomnography at 2-4 weeks'...
Source: Journal of Sleep Research - November 4, 2009 Category: Sleep Medicine Authors: Witcombe NB, Yiallourou SR, Walker AM, Horne RS Tags: J Sleep Res Source Type: journals
Priming affects poor sleepers but not normal sleepers on an Insomnia Ambiguity Task.Email this article to a colleague.
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Summary With increasing importance being placed on the role of cognitive biases as a maintaining factor in insomnia, the influence of order effects on interpretative responses should be examined and subsequently accounted for. The aim of the present study was to examine whether asking participants about their sleep experiences, prior to testing for a perceptual bias, affects responses on a sleep-related ambiguity task. One hundred and seventeen undergraduate students, blind to the aims of the experiment, were issued either the Dysfunctional Beliefs and Attitudes to Sleep scale (DBAS-10) and Insomnia Severity Index (ISI...
Source: Journal of Sleep Research - November 4, 2009 Category: Sleep Medicine Authors: Ellis J, Gardani M, Hogh H Tags: J Sleep Res Source Type: journals
Heat-shock protein 70: expression in monocytes of patients with sleep apnoea and association with oxidative stress and tumour necrosis factor-alpha.Email this article to a colleague.
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In conclusion, basal HSP70 overexpression that is a protective mechanism indicative of disease-associated stress was significantly higher in patients with OSA and was correlated with oxidative stress. On the other hand, in response to a defined heat-stress treatment, the induction of HSP70 was lower in patients with OSA, indicative of a possible maladaptive response to an acute stress. Correlations with oxidative stress and TNF-alpha further support this conclusion.
PMID: 19895425 [PubMed - as supplied by publisher] (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - November 4, 2009 Category: Sleep Medicine Authors: Lavie L, Dyugovskaya L, Golan-Shany O, Lavie P Tags: J Sleep Res Source Type: journals
Applying the quarter-hour rule: can people with insomnia accurately estimate 15-min periods during the sleep-onset phase?Email this article to a colleague.
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Discuss or comment on this article.
This study expands upon previous research with the aim of identifying whether people with insomnia can accurately perceive a 15-min interval during the sleep-onset period, and therefore successfully implements the QHR. A mixed models anova design was applied with between-participants factor of group (insomnia versus good sleepers) and within-participants factor of context (night versus day). Results indicated no differences between groups and contexts on time estimation tasks. This was despite an increase in arousal in the night context for both groups, and tentative support for the impact of arousal in inducing underestim...
Source: Journal of Sleep Research - November 4, 2009 Category: Neurology Authors: LISA HARROW, COLIN ESPIE Source Type: journals
Heat-shock protein 70: expression in monocytes of patients with sleep apnoea and association with oxidative stress and tumour necrosis factor-αEmail this article to a colleague.
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In conclusion, basal HSP70 overexpression that is a protective mechanism indicative of disease-associated stress was significantly higher in patients with OSA and was correlated with oxidative stress. On the other hand, in response to a defined heat-stress treatment, the induction of HSP70 was lower in patients with OSA, indicative of a possible maladaptive response to an acute stress. Correlations with oxidative stress and TNF-[alpha] further support this conclusion. (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - November 4, 2009 Category: Neurology Authors: LENA LAVIE, LARISSA DYUGOVSKAYA, ORIT GOLAN-SHANY, PERETZ LAVIE Source Type: journals
Priming affects poor sleepers but not normal sleepers on an Insomnia Ambiguity TaskEmail this article to a colleague.
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Discuss or comment on this article.
With increasing importance being placed on the role of cognitive biases as a maintaining factor in insomnia, the influence of order effects on interpretative responses should be examined and subsequently accounted for. The aim of the present study was to examine whether asking participants about their sleep experiences, prior to testing for a perceptual bias, affects responses on a sleep-related ambiguity task. One hundred and seventeen undergraduate students, blind to the aims of the experiment, were issued either the Dysfunctional Beliefs and Attitudes to Sleep scale (DBAS-10) and Insomnia Severity Index (ISI) before, or...
Source: Journal of Sleep Research - November 4, 2009 Category: Neurology Authors: JASON ELLIS, MARIA GARDANI, HENRIETTE HOGH Source Type: journals
Differential effects of waking from non-rapid eye movement versus rapid eye movement sleep on cardiovascular activity.Email this article to a colleague.
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This study tested the hypothesis that the increase in sympathetic dominance and the surge in BP were greater when waking spontaneously from Stage 2 sleep compared with waking from rapid eye movement (REM) sleep. Twenty healthy young adults had overnight polysomnography, including electrocardiogram measurements. Spectral analysis of heart rate variability (HRV) was conducted on 2-min blocks of stable data selected from the last 30 min of sleep and during 30 min of resting wakefulness (supine) immediately following sleep. Outputs included absolute low frequency (LF) and high frequency (HF) power, the LF/HF ratio, heart rate ...
Source: Journal of Sleep Research - October 28, 2009 Category: Sleep Medicine Authors: Goff EA, Nicholas CL, Simonds AK, Trinder J, Morrell MJ Tags: J Sleep Res Source Type: journals
Endogenous ouabain-like compounds in locus coeruleus modulate rapid eye movement sleep in rats.Email this article to a colleague.
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Summary Although the detailed mechanism of spontaneous generation and regulation of rapid eye movement sleep (REMS) is yet unknown, it has been reported that noradrenergic REM-OFF neurons in the locus coeruleus (LC) cease firing during REMS and, if they are kept active, REMS is significantly reduced. On the other hand, the activity as well as expression of Na-K ATPase has been shown to increase in the LC following REMS deprivation. Ouabain is a specific inhibitor of Na-K ATPase, and endogenous ouabain-like compounds are present in the brain. These findings led us to propose that a decrease in the level of ouabain-like ...
Source: Journal of Sleep Research - October 28, 2009 Category: Sleep Medicine Authors: Jaiswal MK, Dvela M, Lichtstein D, Mallick BN Tags: J Sleep Res Source Type: journals
The effects of sleep and sleep deprivation on task-switching performance.Email this article to a colleague.
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In this study, we investigated whether SD selectively affects specific components of the executive control processes involved in task-switching performance. Two different tasks are performed in rapid and random succession in this procedure, so that the to-be-executed task may change from one trial to the next (switch trial), or may be repeated (repetition trial). Task-switches are usually slower than task repetitions, giving way to the 'switch cost'. One hundred and eight university students were assigned randomly to the sleep (S) or the SD group. Each of them was tested on a task-switching paradigm before and after an exp...
Source: Journal of Sleep Research - October 28, 2009 Category: Sleep Medicine Authors: Couyoumdjian A, Sdoia S, Tempesta D, Curcio G, Rastellini E, DE Gennaro L, Ferrara M Tags: J Sleep Res Source Type: journals
The effects of sleep and sleep deprivation on task-switching performanceEmail this article to a colleague.
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In this study, we investigated whether SD selectively affects specific components of the executive control processes involved in task-switching performance. Two different tasks are performed in rapid and random succession in this procedure, so that the to-be-executed task may change from one trial to the next (switch trial), or may be repeated (repetition trial). Task-switches are usually slower than task repetitions, giving way to the 'switch cost'. One hundred and eight university students were assigned randomly to the sleep (S) or the SD group. Each of them was tested on a task-switching paradigm before and after an exp...
Source: Journal of Sleep Research - October 28, 2009 Category: Neurology Authors: ALESSANDRO COUYOUMDJIAN, STEFANO SDOIA, DANIELA TEMPESTA, GIUSEPPE CURCIO, ELISABETTA RASTELLINI, LUIGI DE GENNARO, MICHELE FERRARA Source Type: journals
Endogenous ouabain-like compounds in locus coeruleus modulate rapid eye movement sleep in ratsEmail this article to a colleague.
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Discuss or comment on this article.
Although the detailed mechanism of spontaneous generation and regulation of rapid eye movement sleep (REMS) is yet unknown, it has been reported that noradrenergic REM-OFF neurons in the locus coeruleus (LC) cease firing during REMS and, if they are kept active, REMS is significantly reduced. On the other hand, the activity as well as expression of Na-K ATPase has been shown to increase in the LC following REMS deprivation. Ouabain is a specific inhibitor of Na-K ATPase, and endogenous ouabain-like compounds are present in the brain. These findings led us to propose that a decrease in the level of ouabain-like compounds sp...
Source: Journal of Sleep Research - October 28, 2009 Category: Neurology Authors: MANOJ K. JAISWAL, MORAN DVELA, DAVID LICHTSTEIN, BIRENDRA N. MALLICK Source Type: journals
Differential effects of waking from non-rapid eye movement versus rapid eye movement sleep on cardiovascular activityEmail this article to a colleague.
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This study tested the hypothesis that the increase in sympathetic dominance and the surge in BP were greater when waking spontaneously from Stage 2 sleep compared with waking from rapid eye movement (REM) sleep. Twenty healthy young adults had overnight polysomnography, including electrocardiogram measurements. Spectral analysis of heart rate variability (HRV) was conducted on 2-min blocks of stable data selected from the last 30 min of sleep and during 30 min of resting wakefulness (supine) immediately following sleep. Outputs included absolute low frequency (LF) and high frequency (HF) power, the LF/HF ratio, heart rate ...
Source: Journal of Sleep Research - October 28, 2009 Category: Neurology Authors: ELIZABETH A. GOFF, CHRISTIAN L. NICHOLAS, ANITA K. SIMONDS, JOHN TRINDER, MARY J. MORRELL Source Type: journals
The effects of sleep deprivation in humans: topographical electroencephalogram changes in non-rapid eye movement (NREM) sleep versus REM sleepEmail this article to a colleague.
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Studies on homeostatic aspects of sleep regulation have been focussed upon non-rapid eye movement (NREM) sleep, and direct comparisons with regional changes in rapid eye movement (REM) sleep are sparse. To this end, evaluation of electroencephalogram (EEG) changes in recovery sleep after extended waking is the classical approach for increasing homeostatic need. Here, we studied a large sample of 40 healthy subjects, considering a full-scalp EEG topography during baseline (BSL) and recovery sleep following 40 h of wakefulness (REC). In NREM sleep, the statistical maps of REC versus BSL differences revealed significant front...
Source: Journal of Sleep Research - October 21, 2009 Category: Neurology Authors: CRISTINA MARZANO, MICHELE FERRARA, GIUSEPPE CURCIO, LUIGI DE GENNARO Source Type: journals
Slow oscillations in human non-rapid eye movement sleep electroencephalogram: effects of increased sleep pressure.Email this article to a colleague.
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This study does not question slow-wave activity as a marker of sleep homeostasis, as the observed changes occurred within the same frequency range.
PMID: 19845847 [PubMed - as supplied by publisher] (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - October 20, 2009 Category: Sleep Medicine Authors: Bersagliere A, Achermann P Tags: J Sleep Res Source Type: journals
Involvement of sympathetic function in the sleep-related change of gastric myoelectrical activity in rats.Email this article to a colleague.
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Summary The gastric myoelectrical activity (GMA) fluctuates across sleep-wake states as a result of modulation by the brain-gut axis. The role of the autonomic nervous system in this phenomenon, however, was not elucidated fully. Through simultaneous recording and subsequent continuous power spectral analysis of electroencephalogram, electromyogram, electrocardiogram and electrogastromyogram (EGMG) in 16 freely moving Wistar rats, the sleep-wake states of the animals were defined and indices of cardiac autonomic regulation and GMA were calculated. We found that both cardiac autonomic regulation and GMA fluctuated throu...
Source: Journal of Sleep Research - October 20, 2009 Category: Sleep Medicine Authors: Huang YM, Yang CC, Lai CJ, Kuo TB Tags: J Sleep Res Source Type: journals
The effects of sleep deprivation in humans: topographical electroencephalogram changes in non-rapid eye movement (NREM) sleep versus REM sleep.Email this article to a colleague.
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In conclusion, REM sleep and NREM sleep seem to share some homeostatic mechanisms in response to sleep deprivation, as indicated mainly by the similar direction and topography of changes in low-frequency activity.
PMID: 19845849 [PubMed - as supplied by publisher] (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - October 20, 2009 Category: Sleep Medicine Authors: Marzano C, Ferrara M, Curcio G, Gennaro LD Tags: J Sleep Res Source Type: journals
Involvement of sympathetic function in the sleep-related change of gastric myoelectrical activity in ratsEmail this article to a colleague.
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The gastric myoelectrical activity (GMA) fluctuates across sleep[ndash]wake states as a result of modulation by the brain[ndash]gut axis. The role of the autonomic nervous system in this phenomenon, however, was not elucidated fully. Through simultaneous recording and subsequent continuous power spectral analysis of electroencephalogram, electromyogram, electrocardiogram and electrogastromyogram (EGMG) in 16 freely moving Wistar rats, the sleep[ndash]wake states of the animals were defined and indices of cardiac autonomic regulation and GMA were calculated. We found that both cardiac autonomic regulation and GMA fluctuated...
Source: Journal of Sleep Research - October 20, 2009 Category: Neurology Authors: YU-MIN HUANG, CHERYL C. H. YANG, CHING JUNG LAI, TERRY B. J. KUO Source Type: journals
Slow oscillations in human non-rapid eye movement sleep electroencephalogram: effects of increased sleep pressureEmail this article to a colleague.
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Slow oscillations ( (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - October 20, 2009 Category: Neurology Authors: ALESSIA BERSAGLIERE, PETER ACHERMANN Source Type: journals
Daytime sleepiness, psychomotor performance, waking EEG spectra and evoked potentials in women with severe premenstrual syndrome.Email this article to a colleague.
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Summary We assessed daytime sleepiness using objective and subjective measures in women with severe premenstrual syndrome (PMS) compared with women without significant premenstrual symptoms. Nine women with severe PMS and eight controls (aged 18-40 years) completed a laboratory-based daytime protocol including the maintenance of wakefulness test (MWT), psychomotor vigilance task (PVT), quantitative waking electroencephalogram (EEG), auditory and visual event-related potentials (ERPs), and sleepiness and mood scales during the mid-follicular and late-luteal (premenstrual) phases of the menstrual cycle. In association wi...
Source: Journal of Sleep Research - October 13, 2009 Category: Sleep Medicine Authors: Baker FC, Colrain IM Tags: J Sleep Res Source Type: journals
Sleep disturbances as a predictor of occupational injuries among public sector workers.Email this article to a colleague.
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This study suggests that sleep disturbances are a significant predictor of occupational injuries even after accounting for a range of covariates.
PMID: 19840241 [PubMed - as supplied by publisher] (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - October 13, 2009 Category: Sleep Medicine Authors: Salminen S, Oksanen T, Vahtera J, Sallinen M, Härmä M, Salo P, Virtanen M, Kivimäki M Tags: J Sleep Res Source Type: journals
Sleep and physical growth in infants during the first 6 months.Email this article to a colleague.
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Summary The aim of this study was to explore the relationships between infant sleep patterns and infant physical growth (weight for length ratio) using both objective and subjective sleep measures. Ninety-six first-born, healthy 6-month-old infants and their parents participated in the study. Infant sleep was assessed by actigraphy for four consecutive nights and by the Brief Infant Sleep Questionnaire (BISQ). In addition, parents were asked to complete background and developmental questionnaires. Questions about feeding methods were included in the developmental questionnaire. Infants' weight and length were assessed ...
Source: Journal of Sleep Research - October 13, 2009 Category: Sleep Medicine Authors: Tikotzky L, de Marcas G, Har-Toov J, Dollberg S, Bar-Haim Y, Sadeh A Tags: J Sleep Res Source Type: journals
Bargaining and trust: the effects of 36-h total sleep deprivation on socially interactive decisions.Email this article to a colleague.
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Summary Although it is well known that sleep loss results in poor judgement and decisions, little is known about the influence of social context in these processes. Sixteen healthy young adults underwent three games involving bargaining ('Ultimatum' and 'Dictator') and trust, following total sleep deprivation (TSD) and during rested wakefulness (RW), in a repeated-measures, counterbalanced design. To control for repeatability, a second group (n = 16) was tested twice under RW conditions. Paired anonymously with another individual, participants made their simple social interaction decisions facing real monetary incentiv...
Source: Journal of Sleep Research - October 13, 2009 Category: Sleep Medicine Authors: Anderson C, Dickinson DL Tags: J Sleep Res Source Type: journals
Sleep disturbances as a predictor of occupational injuries among public sector workersEmail this article to a colleague.
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This study suggests that sleep disturbances are a significant predictor of occupational injuries even after accounting for a range of covariates. (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - October 13, 2009 Category: Neurology Authors: SIMO SALMINEN, TUULA OKSANEN, JUSSI VAHTERA, MIKAEL SALLINEN, MIKKO HÄRMÄ, PAULA SALO, MARIANNA VIRTANEN, MIKA KIVIMÄKI Source Type: journals
Daytime sleepiness, psychomotor performance, waking EEG spectra and evoked potentials in women with severe premenstrual syndromeEmail this article to a colleague.
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We assessed daytime sleepiness using objective and subjective measures in women with severe premenstrual syndrome (PMS) compared with women without significant premenstrual symptoms. Nine women with severe PMS and eight controls (aged 18[minus]40 years) completed a laboratory-based daytime protocol including the maintenance of wakefulness test (MWT), psychomotor vigilance task (PVT), quantitative waking electroencephalogram (EEG), auditory and visual event-related potentials (ERPs), and sleepiness and mood scales during the mid-follicular and late-luteal (premenstrual) phases of the menstrual cycle. In association with inc...
Source: Journal of Sleep Research - October 13, 2009 Category: Neurology Authors: FIONA C. BAKER, IAN M. COLRAIN Source Type: journals
Bargaining and trust: the effects of 36-h total sleep deprivation on socially interactive decisionsEmail this article to a colleague.
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Although it is well known that sleep loss results in poor judgement and decisions, little is known about the influence of social context in these processes. Sixteen healthy young adults underwent three games involving bargaining ('Ultimatum' and 'Dictator') and trust, following total sleep deprivation (TSD) and during rested wakefulness (RW), in a repeated-measures, counterbalanced design. To control for repeatability, a second group (n = 16) was tested twice under RW conditions. Paired anonymously with another individual, participants made their simple social interaction decisions facing real monetary incentives. For barg...
Source: Journal of Sleep Research - October 13, 2009 Category: Neurology Authors: CLARE ANDERSON, DAVID L. DICKINSON Source Type: journals
Sleep and physical growth in infants during the first 6 monthsEmail this article to a colleague.
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The aim of this study was to explore the relationships between infant sleep patterns and infant physical growth (weight for length ratio) using both objective and subjective sleep measures. Ninety-six first-born, healthy 6-month-old infants and their parents participated in the study. Infant sleep was assessed by actigraphy for four consecutive nights and by the Brief Infant Sleep Questionnaire (BISQ). In addition, parents were asked to complete background and developmental questionnaires. Questions about feeding methods were included in the developmental questionnaire. Infants' weight and length were assessed during a sta...
Source: Journal of Sleep Research - October 13, 2009 Category: Neurology Authors: LIAT TIKOTZKY, GALI DE MARCAS, JOSEPH HAR-TOOV, SHAUL DOLLBERG, YAIR BAR-HAIM, AVI SADEH Source Type: journals
Treatment effects on brain activity during a working memory task in obstructive sleep apnea.Email this article to a colleague.
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Summary Positive airway pressure (PAP) is the most common form of treatment for obstructive sleep apnea (OSA). Treatment adherence is notoriously low, and holidays from treatment are common. To date, there is no literature on the effects of acute withdrawal from PAP treatment on the brain activity of individuals with OSA. Nine participants with OSA performed a 2-Back verbal working memory paradigm during repeated functional magnetic resonance imaging (FMRI). Counterbalanced FMRI sessions were under conditions of PAP treatment (at least one consecutive week) or non-treatment (for two consecutive nights). Treatment effec...
Source: Journal of Sleep Research - September 16, 2009 Category: Sleep Medicine Authors: Aloia MS, Sweet LH, Jerskey BA, Zimmerman M, Todd Arnedt J, Millman RP Tags: J Sleep Res Source Type: journals
Hypoxia-induced changes in recovery sleep, core body temperature, urinary 6-sulphatoxymelatonin and free cortisol after a simulated long-duration flight.Email this article to a colleague.
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This study shows clearly the impact of hypobaric hypoxia on circadian time structure during air flights leading to a phase delay of CBT, independent of jet lag and consequences on sleep during recovery.
PMID: 19765206 [PubMed - as supplied by publisher] (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - September 16, 2009 Category: Sleep Medicine Authors: Coste O, VAN Beers P, Touitou Y Tags: J Sleep Res Source Type: journals
Treatment effects on brain activity during a working memory task in obstructive sleep apneaEmail this article to a colleague.
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Positive airway pressure (PAP) is the most common form of treatment for obstructive sleep apnea (OSA). Treatment adherence is notoriously low, and holidays from treatment are common. To date, there is no literature on the effects of acute withdrawal from PAP treatment on the brain activity of individuals with OSA. Nine participants with OSA performed a 2-Back verbal working memory paradigm during repeated functional magnetic resonance imaging (FMRI). Counterbalanced FMRI sessions were under conditions of PAP treatment (at least one consecutive week) or non-treatment (for two consecutive nights). Treatment effects on 2-Back...
Source: Journal of Sleep Research - September 16, 2009 Category: Neurology Authors: MARK S. ALOIA, LAWRENCE H. SWEET, BETH A. JERSKEY, MOLLY ZIMMERMAN, JOHN TODD ARNEDT, RICHARD P. MILLMAN Source Type: journals
Hypoxia-induced changes in recovery sleep, core body temperature, urinary 6-sulphatoxymelatonin and free cortisol after a simulated long-duration flightEmail this article to a colleague.
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This study shows clearly the impact of hypobaric hypoxia on circadian time structure during air flights leading to a phase delay of CBT, independent of jet lag and consequences on sleep during recovery. (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - September 16, 2009 Category: Neurology Authors: OLIVIER COSTE, PASCAL VAN BEERS, YVAN TOUITOU Source Type: journals
Sleep electroencephalogram in children with a parental history of alcohol abuse/dependence.Email this article to a colleague.
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We examined the sleep electroencephalogram (EEG) in 9- and 10-year-old children with (PH+) and without (PH-) a parental history of alcohol abuse/dependence to determine whether sleep disturbances associated with alcohol precede the onset of alcohol use. Participants slept on a fixed sleep schedule that ensured at least a 10-h time in bed for 1 week before an adaptation and baseline night. Data were collected in a four-bed sleep research laboratory. Thirty healthy boys and girls aged 9 or 10 years were classified as either PH+ or PH- based on DSM-IV criteria applied to structured parental interviews. All-night polysomnograp...
Source: Journal of Sleep Research - September 6, 2009 Category: Sleep Medicine Authors: Tarokh L, Carskadon MA Tags: J Sleep Res Source Type: journals
Sleep electroencephalogram in children with a parental history of alcohol abuse/dependenceEmail this article to a colleague.
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We examined the sleep electroencephalogram (EEG) in 9- and 10-year-old children with (PH+) and without (PH[minus]) a parental history of alcohol abuse/dependence to determine whether sleep disturbances associated with alcohol precede the onset of alcohol use. Participants slept on a fixed sleep schedule that ensured at least a 10-h time in bed for 1 week before an adaptation and baseline night. Data were collected in a four-bed sleep research laboratory. Thirty healthy boys and girls aged 9 or 10 years were classified as either PH+ or PH[minus] based on DSM-IV criteria applied to structured parental interviews. All-night p...
Source: Journal of Sleep Research - September 6, 2009 Category: Neurology Authors: LEILA TAROKH, MARY A. CARSKADON Source Type: journals
Medical exposures in youth and the frequency of narcolepsy with cataplexy: a population-based case–control study in genetically predisposed peopleEmail this article to a colleague.
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Epidemiological observations suggest that exposures in youth may trigger narcolepsy in genetically predisposed individuals. In this population-based case[ndash]control study, we sought to identify all prevalent cases of narcolepsy with cataplexy aged 18[ndash]50 years as of 1 July 2001, in King County, Washington. The 45 eligible cases who were DQB1*0602-positive were compared with 95 controls with this allele, identified through random-digit dialing and buccal smears. Cases and controls were interviewed in person about physician-diagnosed infectious and non-infectious illnesses, immunizations, head trauma and parasomnias ...
Source: Journal of Sleep Research - August 30, 2009 Category: Neurology Authors: THOMAS D. KOEPSELL, William T. LONGSTRETH, THANH G. N. TON Source Type: journals
Self-reported sleep duration and cognitive functioning in the general populationEmail this article to a colleague.
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This study investigated the relationship between self-reported sleep factors (sleep duration, insomnia, use of sleeping medicine, probable sleep apnoea and feelings of fatigue and tiredness) with cognitive functioning in 5177 people aged 30 years or older from a cross-sectional representative sample of the adult population in Finland (The Finnish Health 2000 Survey). Previous studies have indicated a U-shaped association between increased health risks and sleep duration; we hypothesized a U-shaped association between sleep duration and cognitive functioning. Objective cognitive functioning was assessed with tasks derived f...
Source: Journal of Sleep Research - August 30, 2009 Category: Neurology Authors: ERKKI KRONHOLM, MIKAEL SALLINEN, TIMO SUUTAMA, RAIMO SULKAVA, PERTTI ERA, TIMO PARTONEN Source Type: journals
Central apnoeas have significant effects on blood pressure and heart rate in childrenEmail this article to a colleague.
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This study demonstrates that movement-induced CAs are more common in children with OSA, and are associated with significantly greater changes in HR and BP compared with spontaneous CAs. These data suggest that movement-induced CAs should be considered when assessing the cardiovascular impact of SDB. (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - August 30, 2009 Category: Neurology Authors: DENISE M. O'DRISCOLL, ALISON M. FOSTER, MICHELLE L. NG, JOEL S. C. YANG, FARHAT BASHIR, SHI WONG, GILLIAN M. NIXON, MARGOT J. DAVEY, VICKI ANDERSON, ADRIAN M. WALKER, JOHN TRINDER, ROSEMARY S. C. HORNE Source Type: journals
Sleep problems in general practice: a national survey of assessment and treatment routines of general practitioners in NorwayEmail this article to a colleague.
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This study demonstrates that sleep problems are recognized by GPs, but despite evidence that non-pharmacological treatment is superior in the long-term management of insomnia, the current study shows that hypnotics are still considered by GPs to be the most successful treatment. (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - August 30, 2009 Category: Neurology Authors: BØRGE SIVERTSEN, INGER H. NORDHUS, BJøRN BJORVATN, STÅLE PALLESEN Source Type: journals
Heart rate increment analysis is not effective for sleep-disordered breathing screening in patients with chronic heart failureEmail this article to a colleague.
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Frequency domain analysis of heart rate variation has been suggested as an effective screening tool for sleep-disordered breathing (SDB) in the general population. The aim of this study was to assess this method in patients with chronic congestive heart failure (CHF). We included prospectively 84 patients with stable CHF, left ventricular ejection fraction (LVEF) (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - August 30, 2009 Category: Neurology Authors: THIBAUD DAMY, MARIE-PIA D'ORTHO, BRIGITTE ESTRUGO, LAURENT MARGARIT, GAUTHIER MOUILLET, MOHANNAD MAHFOUD, FRANCOISE ROUDOT-THORAVAL, EMMANUELLE VERMES, LUC HITTINGER, FREDERIC ROCHE, ISABELLE MACQUIN-MAVIER Source Type: journals
The race for the impact factor.Email this article to a colleague.
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PMID: 19702787 [PubMed - in process] (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - August 27, 2009 Category: Sleep Medicine Authors: Lavie P Tags: J Sleep Res Source Type: journals
The impact of sleep duration and subject intelligence on declarative and motor memory performance: how much is enough?Email this article to a colleague.
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Recent findings clearly demonstrate that daytime naps impart substantial memory benefits compared with equivalent periods of wakefulness. Using a declarative paired associates task and a procedural motor sequence task, this study examined the effect of two lengthier durations of nocturnal sleep [either a half night (3.5 h) or a full night (7.5 h) of sleep] on over-sleep changes in memory performance. We also assessed whether subject intelligence is associated with heightened task acquisition and, more importantly, whether greater intelligence translates to greater over-sleep declarative and procedural memory enhancemen...
Source: Journal of Sleep Research - August 27, 2009 Category: Sleep Medicine Authors: Tucker MA, Fishbein W Tags: J Sleep Res Source Type: journals
Differential effects of lorazepam on sleep and activity in C57BL/6J and BALB/cJ strain mice.Email this article to a colleague.
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We examined the effects of two doses of lorazepam (0.5 and 1.5 mg kg(-1)) or saline alone (0.2 mL) on sleep and activity in C57BL/6 (n = 8) and BALB/c (n = 7) mice. Compared to saline, both doses of lorazepam significantly increased non-rapid eye movement (NREM) and reduced activity in both strains. In C57BL/6 mice, rapid eye movement (REM) was increased at both doses. In BALB/c mice, the 0.5 mg kg(-1) dose had no significant influence on REM, whereas REM was reduced significantly after the 1.5 mg kg(-1) dose. The results demonstrate significant differences between C57BL/6 and BALB/c mice in the effects of lorazepam on REM...
Source: Journal of Sleep Research - August 27, 2009 Category: Sleep Medicine Authors: Tang X, Yang L, Fishback NF, Sanford LD Tags: J Sleep Res Source Type: journals
