prior research (10) we found significant effects of PTSD on the cingulum; here, poorer cingulum connectivity was associated with a PTSD diagnosis. In addition, our prior studies (10, 13) used a self-report PTSD measure (PTSD Symptom Scale; (48). Here we employed a clinician-administered, gold-standard measure of PTSD, the CAPS (28). Given the excellent psychometric properties of this measure, as well as the fact that it is clinician-administered, use of this measure may decrease the likelihood of over-estimating PTSD rates in our sample.