TY - JOUR
T1 - Resting electroencephalogram asymmetry and posttraumatic stress disorder
AU - Shankman, Stewart A.
AU - Silverstein, Steven M.
AU - Williams, Leanne M.
AU - Hopkinson, Patrick J.
AU - Kemp, Andrew H.
AU - Felmingham, Kim L.
AU - Bryant, Richard A.
AU - McFarlane, Alexander
AU - Clark, C. Richard
PY - 2008/4
Y1 - 2008/4
N2 - 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).
AB - 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).
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U2 - 10.1002/jts.20319
DO - 10.1002/jts.20319
M3 - Article
C2 - 18404640
AN - SCOPUS:43249121667
SN - 0894-9867
VL - 21
SP - 190
EP - 198
JO - Journal of Traumatic Stress
JF - Journal of Traumatic Stress
IS - 2
ER -