By Dr. Gamini Jayasinghe,MBBS, MSc, PhD Reading
Introduction and classification-
Dissociation has been described in psychiatric literature as early as 1815. Before the publication of the fourth edition (DSM-IV) of diagnostic and statistical manual of mental disorders in 1994, the condition was known as multiple personality disorder. The name was changed to address both misconceptions regarding the nature of the disorder and the clinical transition from a rare to a more commonplace diagnosis. Pathological possession trance (PPT) was formally known as dissociative trance disorder in the DSM psychiatric manual and currently PPT is included within the dissociative identity disorder (DID) criteria in the DSM-IV. Psychiatric diagnosis of DID has been under serious scrutiny for more than 10 years. Dissociative identity disorder( DID) is the most complex of dissociative identity disorder (American psychiatric association,1994 ).
Possession and trance disorder or pathological possession trance is characterized by a transient alteration in identity and one’s normal identity is temporarily replaced or possessed by a spirit, ghost, deity, or other person. This condition is associated with stereotype involuntary movements or amnesia. Why I interest for this disorder is one of the most common dissociative disorders in Asia. The important fact is PPT covers only the involuntary possession experience.