Abstract
Similarities and differences between multiple personality and hypnosis are explored. First, comparisons are made in terms of dissociation, with special attention to neo-dissociation theory. Second, selected features of memory as system and process are addressed. Third, roletaking theory is related to multiple personality and hypnosis. Finally, a conceptual framework of ego and self-psychology is presented with implications for a developmental theory of multiple personality as a disorder of narcissism. Hypnosis and multiple personality are seen as sharing certain pathways but not as representing similar conditions.