Treatment of Older Veterans With Chronic Posttraumatic Stress Disorder

This project represents the first randomized clinical trial of psychotherapy for older veterans with posttraumatic stress disorder (PTSD). It will compare relaxation training (RT) to prolonged exposure therapy (PE). The project will also examine whether cognitive impairment influences psychotherapy outcome. Primary hypotheses: (1) Subjects in the PE condition will have significantly less severe PTSD symptoms, depressive symptoms, and functional impairment than subjects in the RT condition at posttest; (2) Executive functioning will modify the response to both treatments, such that those with impaired executive functioning will demonstrate a smaller reduction in PTSD symptoms (representing less clinically significant change).