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Type: Journal article
Title: Resting electroencephalogram asymmetry and posttraumatic stress disorder
Author: Shankman, S.
Silverstein, S.
Williams, L.
Hopkinson, P.
Kemp, A.
Felmingham, K.
Bryant, R.
McFarlane, A.
Clark, C.
Citation: Journal of Traumatic Stress, 2008; 21(2):190-198
Publisher: Kluwer Academic/Plenum Publ
Issue Date: 2008
ISSN: 0894-9867
Abstract: The valence-arousal (W. Heller, 1993) and approach-withdrawal (R. J. Davidson, 1998a) models hypothesize that particular patterns of hemispheric brain activity are associated with specific motivational tendencies and psychopathologies. We tested several of these predictions in two groups-a posttraumatic stress disorder (PTSD) and a "supercontrol" group, selected to be maximally different from those with PTSD. Contrary to almost all hypotheses, individuals with PTSD did not differ from controls on resting electroencephalogram (EEG) asymmetry. Particular aspects of PTSD were also not related to EEG hemisphere differences. Our null findings are consistent with the few studies that have examined resting EEG asymmetries in PTSD and suggest that PTSD may be associated with different processes than psychopathologies previously examined in studies of hemispheric brain activity (e.g., major depressive disorder, panic disorder).
Keywords: Cerebral Cortex; Humans; Electroencephalography; Alpha Rhythm; Brain Mapping; Data Interpretation, Statistical; Control Groups; Life Change Events; Arousal; Anxiety Disorders; Stress Disorders, Post-Traumatic; Depressive Disorder, Major; Psychiatric Status Rating Scales; Personality Inventory; Models, Neurological; Rest; Functional Laterality
RMID: 0020080622
DOI: 10.1002/jts.20319
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Appears in Collections:Psychiatry publications

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