Some time ago, one of the authors (SJL) was consulted by a college-educated, 42-yearold woman,“Ms. M.,” who stated she was a “multiple personality” and wanted help to fully integrate herself and her memories. She had moved recently from a large city and had been in treatment for three years with another therapist. She received the diagnosis of dissociative identity disorder (DID), formerly known as multiple personality disorder, after her therapist had referred her to a specialty hospital clinic for DID.

Dissociative identity disorder (DID) is a chronic post-traumatic disorder where developmentally stressful events in childhood, including abuse, emotional neglect, disturbed attachment, and boundary violations are central and typical etiological factors. Familial, societal, and cultural factors may give rise to the trauma and/or they may influence the expression of DID. Memory and the construction of self-identity are cognitive processes that appear markedly and centrally disrupted in DID and are related to its etiology. Enduring decoupling of psychological modes may create separate senses of self, and metamemory processes may be involved in interidentity amnesia. Neurobiological differences have been demonstrated between dissociative identities within patients with DID and between patients with DID and controls. Given the current evidence, DID as a diagnostic entity cannot be explained as a phenomenon created by iatrogenic influences, suggestibility, malingering, or social role-taki...

Dissociative identity disorder (DID) is the famous psychiatric condition which is controversial and often been confused and misunderstood over the years. It is previously known as multiple personality disorder. Some people believed it as a spiritual phenomenon, while the scientific community believes it to be a pathophysiological disorder. Various studies are conducted in search of pathophysiology of this mysterious condition, some studies shown results while some had failed. In this review, we had discussed the history of DID along with symptoms, diagnosis and pathophysiological nature of this disorder. We had also discussed possible treatment interventions for DID, with a focus on psychotherapy interventions and current psychopharmacology treatment. We hope, the studies which are currently ongoing will give positive results, and will be helpful to treat and manage the patients with DID successfully in the near future.

Dissociative identity disorder (multiple personality) is increasingly diagnosed, often follows childhood trauma. and is characterized bv riqidification of phenomena that resemble hypnosis. To inteipret dissociated aspeck of selfhood as autonomous entities is a useful heuristic; but when taken too literally, it leads to three kinds of anomaly: (1) legal: dissociators remain culpable for misdeeds carried out beyond apparent awareness or control; (2) clinical: legitimization sometimes leads not to relief, but to escalating cycles of regressive dependency; and (3) scientific: the form of dissociated entities varies with how they are defined, in ways that are intrinsically motivated and clinically manipulable. These anomalies yield to an evolutionary perspective that views dissociative identity disorder as an evolved strategy of adaptive deception of self and others; e.g., a beaten subordinate avoids further retribution by "pleading illness. " Such a deceit best avoids detectio...

Dissociative amnesia (DA) among subjects with a dissociative disorder and/or borderline personality disorder (BPD) recruited from a nonclinical population was examined. The Steinberg Dissociative Amnesia Questionnaire (SDAQ), the Childhood Trauma Questionnaire, and the self-report screening tool of the BPD section of the Structured Clinical Interview for DSM–IV(SCID-BPD) were administered to 1,301 college students. A total of 80 participants who were diagnosed with BPD according to the clinician-administered SCID-BPD and 111 nonborderline controls were evaluated using the Structured Clinical Interview for DSM–IV Dissociative Disorders (SCID-D) by a psychiatrist blind to diagnosis and scale scores. Internal consistency analyses and test–retest evaluations suggested that the SDAQ is a reliable instrumentforthepopulationstudied.Oftheparticipants,20.6%reported an SDAQ score of 20 or above and impairment by DA. Those who had both dissociative disorder and BPD (n = 78) had the highest SDAQ scores. Both disorders had significant effects on the SCID-D total and amnesia scores in the variance analysis. On SDAQ scores, however, only BPD had this effect. There was a significant interaction between the 2 disorders for the SCID-D total but not for the SDAQ or SCID-D amnesia scores. BPD represented the severity of dissociation and childhood trauma in this study group. However, in contrast to the dissociative disorders, BPD was characterized by better awareness of DA in self-report. The discrepancies between self-report and clinical interview associated with BPD and dissociative disorders are discussed in the context of betrayal theory (J. J. Freyd, 1994) of BPD and perceptual theory (D. B. Beere, 2009) of dissociative disorders.