Reversal of Amnesia for Trauma in a Sample of Psychiatric Inpatients with Dissociative Identity Disorder and Dissociative Disorder Not Otherwise Specified.

The authors interviewed 118 highly dissociative inpatients in a Trauma Program with the Dissociative Disorders Interview Schedule, the Dissociative Experiences Scale and the Adverse Childhood Experiences questionnaire; of the 118 participants 42 met DSM-5 criteria for dissociative identity disorder and 52 for other specified dissociative disorder. The average score on the Dissociative Experiences Scale in the sample of 118 participants was 44.7. The authors also conducted semi-structured interviews inquiring about the circumstances and triggers for reversal of amnesia for childhood trauma in the participants. Only a small minority of the reversal of amnesia took place in therapy sessions, and 24 different triggers for remembering were described. Childhood sexual abuse was by far the most common type of trauma for which amnesia was reversed. The findings are inconsistent with the view that amnesia for childhood sexual abuse is reversed primarily during psychotherapy.