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Abstract
This study examined changes in salivary cortisol levels pre- to posttreatment in adult female rape victims diagnosed with posttraumatic stress disorder (PTSD) randomly assigned to be treated with either prolonged exposure therapy or eye movement desensitization and reprocessing. Salivary cortisol was collected at baseline, Session 3, and Session 9. A significant decrease in salivary cortisol levels was observed in individuals classified as treatment responders in both treatment conditions. Findings suggest that successful exposure-based treatments for PTSD that result in trauma-related and depressive symptom reduction may impact the action of the hypothalamic–pituitary–adrenal axis as measured by changes in level of salivary cortisol from pre- to posttreatment.