Editorial Board
(Source: Psychiatry Research: Neuroimaging)
Source: Psychiatry Research: Neuroimaging - November 2, 2017 Category: Psychiatry Source Type: research
Diffusion imaging study of the corpus callosum in bipolar disorder
Structural and diffusion imaging studies have provided some evidence of abnormal organization of Corpus Callosum (CC) in Bipolar Disorder (BD). Therefore, by using Diffusion Weighted Imaging (DWI), which allows to build subtle prediction models of fiber integrity for white matter (WM) tracts, this study aims to further explore the microstructure integrity of CC in BD patients compared to matched healthy controls. Twenty-four chronic patients with BD and 35 healthy controls were included in the study. (Source: Psychiatry Research: Neuroimaging)
Source: Psychiatry Research: Neuroimaging - November 2, 2017 Category: Psychiatry Authors: Cecilia Prunas, Giuseppe Delvecchio, Cinzia Perlini, Marco Barillari, Mirella Ruggeri, A. Carlo Altamura, Marcella Bellani, Paolo Brambilla Source Type: research
Reduced subcortical volumes among preschool-age girls and boys with ADHD
This study compared the volumes of subcortical structures (caudate nucleus, putamen, globus pallidus, and thalamus) among preschoolers with ADHD and typically developing (TD) children. High resolution T1-weighted 3D MPRAGE images covering the whole brain were acquired on a 3T scanner and subcortical volumes were automatically extracted. (Source: Psychiatry Research: Neuroimaging)
Source: Psychiatry Research: Neuroimaging - November 1, 2017 Category: Psychiatry Authors: Keri S. Rosch, Deana Crocetti, Kathryn Hirabayashi, Martha B. Denckla, Stewart H. Mostofsky, E. Mark Mahone Source Type: research
What can DTI tell about early cognitive impairment? – Differentiation between MCI subtypes and healthy controls by diffusion tensor imaging
Mild cognitive impairment (MCI) gained a lot of interest recently, especially that the conversion rate to Alzheimer Disease (AD) in the amnestic subtype (aMCI) is higher than in the non-amnestic subtype (naMCI). We aimed to determine whether and how diffusion-weighted MRI (DWI) using the diffusion tensor model (DTI) can differentiate MCI subtypes from healthy subjects. High resolution 3D T1W and DWI images of patients (aMCI, n=18; naMCI, n=20; according to Petersen criteria) and controls (n=27) were acquired at 3T and processed using ExploreDTI and SPM. (Source: Psychiatry Research: Neuroimaging)
Source: Psychiatry Research: Neuroimaging - October 30, 2017 Category: Psychiatry Authors: Gyula Gyebn ár, Ádám Szabó, EnikO SirAly, Zsuzsanna Fodor, Anna Sákovics, Pál Salacz, Zoltán Hidasi, Éva Csibri, Gábor Rudas, Lajos R. Kozák, Gábor Csukly Source Type: research
Altered anterior cingulate cortex to hippocampus effective connectivity in response to drug cues in men with cocaine use disorder
This study employed dynamic causal modeling (DCM) to conduct an analysis of effective (directional) connectivity involved in drug-related attentional bias in treatment-seeking CocUD subjects. The DCM analysis was conducted based on functional magnetic resonance imaging (fMRI) data acquired from fifteen CocUD subjects while performing a cocaine-word Stroop task, during which blocks of Cocaine Words (CW) and Neutral Words (NW) alternated. (Source: Psychiatry Research: Neuroimaging)
Source: Psychiatry Research: Neuroimaging - October 27, 2017 Category: Psychiatry Authors: Liangsuo Ma, Joel L. Steinberg, Kathryn A. Cunningham, JamesM. Bjork, Scott D. Lane, Joy M. Schmitz, Thomas Burroughs, Ponnada A. Narayana, Thomas R. Kosten, Antoine Bechara, F. Gerard Moeller Source Type: research
Biological and cognitive correlates of cortical curvature in schizophrenia
Mean cortical curvature may relate to cortico-cortical connections integrity. We explored the association between prefrontal (PFC) cortical curvature and Fractional Anisotropy (FA) values for tracts connecting PFC and relevant cortical regions. In schizpphrenia Anatomical and diffusion magnetic resonance images were obtained from 34 patients (16 of them first-episodes) and 32 healthy controls. We calculated curvature at rostral lateral prefrontal (RLPF) and superior medial prefrontal (SMPF) areas and mean FA for the tracts respectively connecting RLPF and SMPF areas with anterior caudal cingulate (ACC), superior temporal g...
Source: Psychiatry Research: Neuroimaging - October 25, 2017 Category: Psychiatry Authors: Alba Lubeiro, Rodrigo de Luis-Garc ía, Margarita Rodríguez, Aldara Álvarez, Henar de la Red, Vicente Molina Source Type: research
Predicting progression of amnesic mci: the integration of episodic memory impairment with perfusion spect
The present study aimed at assessing if the ability to predict progression from amnesic Mild Cognitive Impairment (aMCI) to dementia is improved by considering the presence at the baseline of Single Photon Emission Computed Tomography (SPECT) perfusion abnormalities in addition to a defect of long term memory.The Episodic Memory Score (EMS), a global index which integrates results obtained in subtests of the Rey's Verbal Learning Test and the Rey-Osterrieth Figure recall, were taken into account to evaluate defects of long term memory. (Source: Psychiatry Research: Neuroimaging)
Source: Psychiatry Research: Neuroimaging - October 25, 2017 Category: Psychiatry Authors: Davide Quaranta, Guido Gainotti, Daniela Di Giuda, Maria Gabriella Vita, Fabrizio Cocciolillo, Giordano Lacidogna, Valeria Guglielmi, Carlo Masullo, Alessandro Giordano, Camillo Marra Source Type: research
Strategy for Semantic Association Memory (SESAME) training: Effects on Brain Functioning in Schizophrenia
In this study, we investigated the neural correlates underlying such memory improvements.Fifteen schizophrenia patients with deficits in self-initiation of semantic encoding strategies were enrolled in a Strategy for Semantic Association Memory (SESAME) training. (Source: Psychiatry Research: Neuroimaging)
Source: Psychiatry Research: Neuroimaging - October 25, 2017 Category: Psychiatry Authors: Synthia Guimond, Sophie B éland, Martin Lepage Source Type: research
Distance-Dependent Alterations in Local Functional Connectivity in Drug-naive Major Depressive Disorder
Previous studies using resting-state functional magnetic resonance imaging (fMRI) have found abnormal functional connectivity in patients with major depressive disorder (MDD). Yet, effect of distance thresholds on local functional connectivity changes in MDD is largely unknown. Here, we used resting-state fMRI data and functional connectivity strength (FCS) method to test local functional connectivity differences at different distance thresholds between 47 drug-naive patients with MDD and 47 healthy controls. (Source: Psychiatry Research: Neuroimaging)
Source: Psychiatry Research: Neuroimaging - October 25, 2017 Category: Psychiatry Authors: Jiajia Zhu, Xiaodong Lin, Chongguang Lin, Chuanjun Zhuo Source Type: research
Neural simulation mechanisms and social-emotional function in schizophrenia
Impairment in simulation, i.e., the generation of internal representations of experiences, may contribute to social dysfunction in schizophrenia spectrum disorders (SZ). Using a novel fMRI task, we identified neural representations generated during simulation of sensorimotor experiences and evaluated their associations with socioemotional function in 19 individuals with SZ and 24 psychiatrically-healthy controls (HC). Participants watched videos depicting a painful sensorimotor experience in the hand or foot of another person and were then asked to imagine how unpleasant it would be to undergo that experience themselves, e...
Source: Psychiatry Research: Neuroimaging - October 23, 2017 Category: Psychiatry Authors: Cora E. Mukerji, Sarah Hope Lincoln, Laura M. Tully, David Dodell-Feder, Christine I. Hooker Source Type: research
Verbal working memory and functional large-scale networks in schizophrenia
The aim of this study was to test whether bilinear and nonlinear effective connectivity (EC) measures of working memory fMRI data can differentiate between patients with schizophrenia (SZ) and healthy controls (HC). We applied bilinear and nonlinear Dynamic Causal Modeling (DCM) for the analysis of verbal working memory in 16 SZ and 21 HC. The connection strengths with nonlinear modulation between the dorsolateral prefrontal cortex (DLPFC) and the ventral tegmental area/substantia nigra (VTA/SN) were evaluated. (Source: Psychiatry Research: Neuroimaging)
Source: Psychiatry Research: Neuroimaging - October 23, 2017 Category: Psychiatry Authors: Maria R Dauvermann, Thomas WJ Moorhead, Andrew R Watson, Barbara Duff, Liana Romaniuk, Jeremy Hall, Neil Roberts, Graham L Lee, Zo ë A Hughes, Nicholas J Brandon, Brandon Whitcher, Douglas HR Blackwood, Andrew M McIntosh, Stephen M Lawrie Source Type: research
Neural simulation mechanisms and socioemotional function in schizophrenia
Impairment in simulation, i.e., the generation of internal representations of experiences, may contribute to social dysfunction in schizophrenia spectrum disorders (SZ). Using a novel fMRI task, we identified neural representations generated during simulation of sensorimotor experiences and evaluated their associations with socioemotional function in 19 individuals with SZ and 24 psychiatrically-healthy controls (HC). Participants watched videos depicting a painful sensorimotor experience in the hand or foot of another person and were then asked to imagine how unpleasant it would be to undergo that experience themselves, e...
Source: Psychiatry Research: Neuroimaging - October 23, 2017 Category: Psychiatry Authors: Cora E. Mukerji, Sarah Hope Lincoln, Laura M. Tully, David Dodell-Feder, Christine I. Hooker Source Type: research
Cyclothymic temperament and glucose metabolism in the right superior parietal lobule
Cyclothymic temperament possesses a central dimension that includes rapid fluctuations in mood and emotional instability, and it is regarded as a prodromal state of bipolar disorder. The aim of the present study is to explore the neural correlates of cyclothymic temperament. We used the data of 55 healthy participants in our previous study and analyzed the association between cyclothymic temperament scores rated by the Temperament Evaluation of Memphis, Pisa, Paris and San Diego-Autoquestionnaire (TEMPS-A) and the uptake of [18F]-FDG measured by positron emission tomography (PET). (Source: Psychiatry Research: Neuroimaging)
Source: Psychiatry Research: Neuroimaging - October 23, 2017 Category: Psychiatry Authors: Koji Hatano, Takeshi Terao, Hirofumi Hirakawa, Kentaro Kohno, Yoshinori Mizokami, Nobuyoshi Ishii Source Type: research
Glutamate Homeostasis in the Adult Rat Prefrontal Cortex is Altered by Cortical Docosahexaenoic Acid Accrual During Adolescence: An in vivo 1H MRS Study
This study determined the effects of dietary-induced alterations in brain DHA accrual on cortical glutamate homeostasis in the adult rat brain. Adolescent rats were fed a control diet (n=20), a n-3 fatty acid-deficient diet (DEF, n=20), or a fish oil-fortified diet containing preformed DHA (FO, n=20). In adulthood 1H MRS scans were performed with voxels in the prefrontal cortex (PFC) and thalamus. (Source: Psychiatry Research: Neuroimaging)
Source: Psychiatry Research: Neuroimaging - October 11, 2017 Category: Psychiatry Authors: Robert K. McNamara, Ruth H. Asch, Jennifer D. Schurdak, Diana M. Lindquist Source Type: research
Automatic processing of emotional facial expressions as a function of social anhedonia
Anhedonia is an important feature of major depression and schizophrenia-spectrum disorders. Few neuroimaging studies have investigated neural alterations in high anhedonia, isolated from other psychopathological variables, by including only participants without clinical diagnoses. The present study examined healthy individuals scoring high (N = 18) vs. low (N = 19) in social anhedonia, who were carefully selected from a sample of N = 282 participants. To examine differences in automatic brain responses to social-affective stimuli between high vs. (Source: Psychiatry Research: Neuroimaging)
Source: Psychiatry Research: Neuroimaging - October 10, 2017 Category: Psychiatry Authors: Vivien G ünther, Juliane Zimmer, Anette Kersting, Karl-Titus Hoffmann, Donald Lobsien, Thomas Suslow Source Type: research
