Dissociative Identity Disorder is characterized by

• A. Disruption of identity characterized by two or more distinct personality states, with related alterations in memory and behavior.
• B. Recurrent gaps in recall of everyday events that are inconsistent with ordinary forgetting.
• C. The symptoms cause clinically significant distress or impairment in functioning.
• D. The disturbance is not a normal part of a broadly accepted cultural or religious practice.

Answer: (A)

At the heart of dissociative identity disorder is a disruption of identity that involves two or more distinct personality states taking control of behavior at different times, with related changes in memory and behavior. This multiple-identity pattern is the defining feature, reflecting a fragmentation of sense of self rather than ordinary forgetfulness or mood symptoms. The memory gaps that often accompany these shifts—such as amnesia for everyday events or personal information—support the diagnosis but are secondary to the core identity disruption. Clinical distress or impairment must be present, and the disturbance must not be part of normal cultural or religious practices. The first option best captures the central phenomenon: the existence of multiple distinct identities with corresponding memory and behavioral changes.