Document Detail


White matter alterations in social anxiety disorder.
MedLine Citation:
PMID:  21705018     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
White matter architecture in patients with social anxiety disorder (SAD) has rarely been investigated, but may yield insights with respect to altered structural brain connectivity. Initial evidence points to alterations in the uncinate fasciculus (UF). We applied diffusion tensor imaging in 25 patients with SAD and 25 matched healthy subjects. Whole-brain fractional anisotropy (FA) maps were used for group comparison and voxel-wise correlation with psychometric and clinical measures. Additionally, a region-of-interest analysis of the UF was performed. Patients with SAD had reduced FA compared to healthy subjects in or near the left UF and the left superior longitudinal fasciculus. There were no regions with increased FA in SAD. In the region-of-interest analysis, a negative correlation between FA and trait anxiety was identified in the left and right UF in patients, but not in healthy subjects. No correlations with social anxiety scores were observed. The present study partially confirms previous results pointing to frontal WM alterations in or near the UF in patients with SAD. SAD-specific dimensional associations of FA with trait anxiety might reflect general pathological and/or compensatory mechanisms as a function of symptom severity in patients. Future studies should disentangle in which way the identified WM alterations match functional alterations.
Authors:
Volker Baur; Jürgen Hänggi; Michael Rufer; Aba Delsignore; Lutz Jäncke; Uwe Herwig; Annette Beatrix Brühl
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-24
Journal Detail:
Title:  Journal of psychiatric research     Volume:  -     ISSN:  1879-1379     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-6-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376331     Medline TA:  J Psychiatr Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
Affiliation:
Clinic for General and Social Psychiatry, Psychiatric University Hospital, Lenggstrasse 31, CH-8032 Zurich, Switzerland; Division Neuropsychology, Institute of Psychology, University of Zurich, Binzmühlestrasse 14/25, CH-8050 Zurich, Switzerland.
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