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Department
Psychology
Course
Psychology 2310A/B
Professor
Rod Martin
Semester
Fall

Description
Dissociative Identity Disorder: A Controversial Diagnosis DSM­IV­TR Diagnostic Criteria • Two or more distinct identities or personality states o Each has its own relatively enduring pattern of perceiving, relating to environment, self • Recurrently take control of person’s behaviour (not pleasant) • Loss of memory for personal information • Not due to physiological effect of a substance or general medical condition o If it is caused by any of these things, it must be short term and healable through other  methods Associated Features • Often history of severe childhood abuse • Post­traumatic symptoms • High rates of comorbidity – depression, anxiety, borderline personality, suicide, substance abuse,  PTSD, eating disorders • Self­mutilation, suicide attempts, aggression • Destructive relationships • Usually highly hypnotizable, dissociative tendencies Course • Tends to be chronic and recurrent • More common in women than men (3 – 9 x) • Women tend to have more identities • Typically diagnosed at 29 – 35 years • Average of 6­7 years between first symptom presentation and diagnosis of DID Common “alters”  ▯the case of Sybil • The Host • The Child • The Avenger • The Protector • The Trauma Repository • The Narcissist • The Helper History of DID • Extremely rare until 30 years ago • 1957 – “Three Faces of Eve” • 1970s – “Sybil” ­ book, film o Drew media attention to multiple personality • 1980’s – dramatic increase in cases o with more media attention, people could self­diagnose themselves o media attention also could have helped people with the disorder to come out and say they  have DID o clinicians could have been very interested in DID, and therefore diagnose more people  with the disorde
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