900msec; flip angle=8°. Resting state functional MRI were acquired using the Z-SAGA pulse sequence, which has been shown (32) to recover susceptibility signal losses including amygdala and prefrontal cortex. Volumes were acquired axially, parallel to the anterior-posterior commissure line; 150 volumes, 30 slices, 3.44×3.44×4 mm3, repetition time TR = 2950 ms, TE = 30/67ms, flip angle = 90°. Resting state data were available for a total of 30 participants, 7 of whom met criteria for PTSD.
