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Chunk #9 — Materials and Methods — Participants

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Posttraumatic Stress Disorder Is Associated with α Dysrhythmia across the Visual Cortex and the Default Mode Network.
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cocaine. Six PTSD participants met diagnostic criteria for mild alcohol use disorder (n = 3) or mild cannabis use disorder (n = 3); 32% of controls (GAD n = 7, HC n = 7) had a history of a DSM-5 criterion A trauma. Index trauma types of participants with PTSD ranged from combat exposure (n = 6) and vehicular accident (n = 3) to rape (n = 7) and sexual (n = 5) or physical assault (n = 4); 48% (n = 12) of participants in the PTSD group reported multiple traumas. The mean number of traumas in the PTSD group was 4.22 (±2.26). All participants provided written, informed consent to participate in the study, which was approved by both the university’s Institutional Review Board and the Department of Defense Human Research Protection Official’s Review. Demographic details are presented in Table 1.