Stress Disorder

Abstract: Posttraumatic stress disorder (PTSD) patients can have very different responses to recalling traumatic memories during neuroimaging. Pilot studies in our labora-tory have shown that approximately 70 per cent of patients relived their traumatic experience and showed an increase in heart rate while recalling the traumatic memory. The other 30 per cent of patients had a dissociative response, with no concomitant increase in heart rate. The present paper reviews the neural correlates of these distinct re-sponses. Résumé: Neuroimagerie des états d’hyperexcitation et de dissociation dans le syndrome de stress post-traumatique Les patients souffrant du syndrome de stress post-traumatique (SSPT) peuvent avoir des réactions for