Posttraumatic Stress Disorder Neuroimaging of Hyperaroused and Dissociative States in Posttraumatic Stress Disorder

نویسندگان

  • Ruth A. Lanius
  • Peter C. Williamson
چکیده

Posttraumatic stress disorder (PTSD) patients can have very different responses to recalling traumatic memories during neuroimaging. Pilot studies in our laboratory 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 responses. 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 fort différentes au rappel de souvenirs traumatiques durant la neuroimagerie. Des études pilotes menées dans nos laboratoires ont indiqué que quelque 70 % des patients revivaient leur expérience traumatique et présentaient une accélération du rythme cardiaque en se remémorant le souvenir traumatique. L’autre 30 % des patients avaient une réaction dissociative sans accélération du rythme cardiaque concomitante. Le présent article examine les corrélations neurales de ces différentes réactions.

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تاریخ انتشار 2002