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Dissociative Identity Disorder MeSH Descriptor Data 2025
A dissociative disorder in which the individual adopts two or more distinct personalities. Each personality is a fully integrated and complex unit with memories, behavior patterns and social friendships. Transition from one personality to another is sudden.
Entry Version
DISSOCIATIVE IDENTITY DIS
Entry Term(s)
Dual Personality
Multiple Identity Disorder
Multiple Personalities
Multiple Personality Disorder
NLM Classification #
WM 173.6
Public MeSH Note
2019; for MULTIPLE PERSONALITIES see DUAL PERSONALITY 1968-78
A dissociative disorder in which the individual adopts two or more distinct personalities. Each personality is a fully integrated and complex unit with memories, behavior patterns and social friendships. Transition from one personality to another is sudden.