Has it ever been proven, or is there a consensus among any body of legitimate scientist (e.g. APA, NIHM, or another) that multiple personality disorder actually exists what are each sides points? And those that believe it to be true, what is the standard treatment?
Dissociative identity disorder is a psychiatric diagnosis and describes a condition in which a person displays multiple distinct identities (known as alters or parts), each with its own pattern of perceiving and interacting with the environment.
In the International Statistical Classification of Diseases and Related Health Problems the name for this diagnosis is multiple personality disorder. In both systems of terminology, the diagnosis requires that at least two personalities (one may be the host) routinely take control of the individual's behavior with an associated memory loss that goes beyond normal forgetfulness; in addition, symptoms cannot be the temporary effects of drug use or a general medical condition