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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.

Item Type:	Refereed Article
Keywords:	event related potential, ptsd
Research Division:	Psychology and Cognitive Sciences
Research Group:	Psychology
Research Field:	Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology)
Objective Division:	Health
Objective Group:	Clinical Health (Organs, Diseases and Abnormal Conditions)
Objective Field:	Clinical Health (Organs, Diseases and Abnormal Conditions) not elsewhere classified
UTAS Author:	Felmingham, KL (Professor Kim Felmingham)
ID Code:	78475
Year Published:	2012
Web of Science® Times Cited:	11
Deposited By:	Psychology
Deposited On:	2012-07-02
Last Modified:	2017-10-31
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