School of Psychology, University of New South Wales, Sydney, Australia.
Biol Psychol. 2012 Jul;90(3):224-7. doi: 10.1016/j.biopsycho.2012.03.011. Epub 2012 Mar 28.
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.
本研究在标准的听觉Oddball 任务中调查了早期创伤暴露组（急性应激障碍：ASD）（n=12）或无 ASD（n=13）、慢性创伤后应激障碍（PTSD）（n=17）和无创伤暴露对照组（n=17）个体对听觉音调的注意（P300 幅度）和定向（皮肤电导幅度）。与 PTSD、未受创伤的对照组和受创伤的对照组相比，ASD 个体对靶音的 SCR 和 P3 幅度明显更高。这些发现表明，与 PTSD 和受创伤及未受创伤的对照组相比，ASD 个体对中性、与任务相关的靶音的注意和定向反应更大。
