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Biological Psychology

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PTSD

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Smaller Hippocampal Volume In Posttraumatic Stress Disorder: A Multisite Enigma-Pgc Study: Subcortical Volumetry Results From Posttraumatic Stress Disorder Consortia, Mark W. Logue, Sanne Jh Van Rooij, Emily L. Dennis, Sarah L. Davis, Lauren O’Connor May 2018

Smaller Hippocampal Volume In Posttraumatic Stress Disorder: A Multisite Enigma-Pgc Study: Subcortical Volumetry Results From Posttraumatic Stress Disorder Consortia, Mark W. Logue, Sanne Jh Van Rooij, Emily L. Dennis, Sarah L. Davis, Lauren O’Connor

Publications and Research

BACKGROUND—Many studies report smaller hippocampal and amygdala volumes in posttraumatic stress disorder (PTSD), but findings have not always been consistent. Here, we present the results of a large-scale neuroimaging consortium study on PTSD conducted by the Psychiatric Genomics Consortium (PGC)–Enhancing Neuroimaging Genetics through Meta-Analysis (ENIGMA) PTSD Working Group.

METHODS—We analyzed neuroimaging and clinical data from 1868 subjects (794 PTSD patients) contributed by 16 cohorts, representing the largest neuroimaging study of PTSD to date. We assessed the volumes of eight subcortical structures (nucleus accumbens, amygdala, caudate, hippocampus, pallidum, putamen, thalamus, and lateral ventricle). We used a standardized image-analysis and …