Dissociative identity disorder, formerly known as multiple personality disorder, is a disorder in which an individual exhibits one or more personality states. These personality states each have their own names, attitudes, identities, and self-images within an individual's consciousness. At least two of the personalities take control of the person's behavior. Dissociation is defined as the disruption of the normal integration process of consciousness, perception, memory and identity, which define individuality (Pias, 2009). Symptoms of dissociation include amnesia, depersonalization, identity confusion, age-related regression, hearing internal voices, and identity alteration (). Dissociative identity disorder is thought to result from the splitting of consciousness and control over one's thoughts, feelings, memories, and mental components in response to traumatic experiences unacceptable to the individual. It indicates a broken personality with the absence of a clear and overall identity (Pias, 2006). Dissociative identity disorder is now understood as a complex and chronic post-traumatic psychopathology. Several factors, including chronic stress, inability to separate memories, abnormal psychological development, and inadequate care and education during childhood, have been identified as causes of DID, but how these factors lead to the development of DID is unclear. In most cases, DID has onset in early childhood between ages 2.5 and 8, but problems often occur in early adolescence. Most theories state that DID is a defense mechanism and is often a reaction to severe childhood trauma, often sexual abuse, but can also include physical, emotional abuse and neglect. such as dream interpretation and hypnosis to bring unconscious material into the conscious to help patients better understand themselves. One difference between the two therapies is the use of archetypes in Jungian therapy. Bibliography Comer, RJ (2010). Abnormal psychology. New York, NY: Worth Publishers. Kalsched, DE (1999). Response to “The Multiple Self: Working with Dissociation and Trauma.” Journal of Analytical Psychology, 44(4), 465. Noll, R. (1989). Multiple personality dissociation and CG Jung's complex theory. Journal of Analytical Psychology, 34, 353-370. Pias, S. (2009). A systematic approach to the treatment of dissociative identity disorder. Journal of Family Psychotherapy, 20, 72-88. Sharf, SR (2012). Theories of psychotherapy and counseling: concepts and cases.Canada: Cengage Learning.