Autonomic and cortical reactivity in acute and chronic posttraumatic stress

作者：Felmingham Kim L^*; Rennie Chris; Gordon Evian; Bryant Richard A

来源：Biological Psychology, 2012, 90(3): 224-227.

DOI：10.1016/j.biopsycho.2012.03.011

• PTSD
• Posttraumatic Stress Disorder
• ERP
• Event related potential
• Acute Stress Disorder
• ASD

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.

• 出版日期2012-7