Coons, Philip M.2005-10-142005-10-141993-120896-2863https://hdl.handle.net/1794/1679p. 213-221Although the literature contains numerous historical and contemporary case reports of possession disorder, the possession syndrome has never been an officially approved psychiatric diagnosis. This paper reviews these case reports and suggests a typology for various types of possession disorder. Possession disorder is contrasted with the religious belief of possession and various types of ritual trance possession which are seen worldwide. The psychophysiology of trance and dissociation will be discussed. Finally, the ICD-10 nosology and proposed DSM-IV classification for possession disorder will be reviewed.417051 bytesapplication/pdfen-USArticle