Given that individuals in our population have demonstrated frequent exposure to trauma, and the possibility that trauma exposure itself would impact connectivity, we assessed for trauma exposure in both childhood and adulthood. The Traumatic Events Inventory (TEI) was administered to detail frequency and type of trauma(s) experienced throughout the lifetime; total level of trauma exposure was measured by a sum score reflecting the total number of different types of traumas to which a participant had been exposed over the course of their life (TEI total) or adulthood (TEI adult trauma). The Clinician Administered PTSD Scale for DSM-IV (28) was administered to determine presence and severity of PTSD symptoms. Based on the CAPS, 13 participants met diagnostic criteria for PTSD (PTSD+), whereas 41 did not meet criteria for the disorder (Controls); subscale scores are provided in Table 1. We administered the Childhood Trauma Questionnaire (CTQ) to measure potential associations between connectivity and childhood maltreatment (29).
