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Posttraumatic stress disorder (PTSD) is a prevalent and impairing condition that often involves difficulties with interpersonal functioning. Targeting interpersonal difficulties may be a promising alternative approach to reducing PTSD symptoms, particularly given the relatively low rates of treatment engagement and efficacy for first-line treatments for PTSD. Recent research has identified perceived burdensomeness (i.e., feelings of being a burden on others) and thwarted belongingness (i.e., feeling isolated and as if one does not belong) as two specific interpersonal factors related to increased PTSD symptoms. Thus, the current study tested whether a brief, computerized intervention would reduce PTSD symptoms via reductions in perceived burdensomeness and thwarted belongingness, vs. a repeated contact control condition.

Hypotheses were tested among 250 trauma-exposed participants who …