Several dissociative disorders exist, although all of them are rare. A person with a dissociative identity disorder (DID) (once called multiple personality disorder) displays characteristics of two or more distinct personalities, identities, or personality fragments. Individual personalities often have a unique set of likes and dislikes and their awn reactions to situations. Some people with multiple personalities even carry several pairs of glasses because their vision changes with each personality. Moreover, each individual personality can be well adjusted when considered on its own.
Definition