Possession Experiences in Dissociative Identity Disorder: A Preliminary Study

The Colin A. Ross Institute for Psychological Trauma, Richardson, Texas 75080, USA.
Journal of Trauma & Dissociation (Impact Factor: 1.72). 07/2011; 12(4):393-400. DOI: 10.1080/15299732.2011.573762
Source: PubMed

ABSTRACT Dissociative trance disorder, which includes possession experiences, was introduced as a provisional diagnosis requiring further study in the Diagnostic and Statistical Manual of Mental Disorders (4th ed.). Consideration is now being given to including possession experiences within dissociative identity disorder (DID) in the Diagnostic and Statistical Manual of Mental Disorders (5th ed.), which is due to be published in 2013. In order to provide empirical data relevant to the relationship between DID and possession states, I analyzed data on the prevalence of trance, possession states, sleepwalking, and paranormal experiences in 3 large samples: patients with DID from North America; psychiatric outpatients from Shanghai, China; and a general population sample from Winnipeg, Canada. Trance, sleepwalking, paranormal, and possession experiences were much more common in the DID patients than in the 2 comparison samples. The study is preliminary and exploratory in nature because the samples were not matched in any way.

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