Autonomic and cortical reactivity in acute and chronic posttraumatic stress

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• 作者：Kim L. Felmingham^a ; ^b ; ^{kfelmingham@psy.unsw.edu.au} ; Chris Rennie^b ; Evian Gordon^b ; ^c ; Richard A. Bryant^a ; ^b
• 关键词：PTSD ; Posttraumatic Stress Disorder ; ERP ; Event related potential ; Acute Stress Disorder ; ASD
• 刊名：Biological Psychology
• 出版年：2012
• 期刊代码：6_03010511
• 类别：neu
• 出版时间：July, 2012
• 卷：90
• 期：3
• 页码：224-227
• 文件大小：369 K

摘要

This study investigated attention (P300 amplitude) and orienting (skin conductance amplitude) to auditory tones in a standard oddball task in early trauma-exposed groups (Acute Stress Disorder: ASD) (n = 12) or no ASD (n = 13), compared to individuals with chronic posttraumatic stress disorder (PTSD) (n = 17) and non-trauma-exposed controls (n = 17). Individuals with ASD displayed significantly higher SCR and P3 amplitudes to target tones than individuals with PTSD, non-traumatized controls, and traumatized controls. These findings suggest that attention and orienting responses are greater to neutral, task-relevant target tones in ASD than PTSD and traumatized and non-traumatized controls.