Approach To Psychiatric Patient – Behavioral Medicine Practice Test

Which feature is most characteristic of dissociative identity disorder?

Memory gaps with no identity changes. Mixed mood symptoms with multiple states. Two or more distinct identities with amnesia between states; dissociative amnesia involves inability to recall autobiographical information usually related to trauma. Sleep disturbance.

Correct Answer:

Two or more distinct identities with amnesia between states; dissociative amnesia involves inability to recall autobiographical information usually related to trauma.

Explanation:

Two or more distinct identities or personality states with amnesia between states is the hallmark of dissociative identity disorder. When someone shifts from one identity to another, there are often significant gaps in memory for events, personal information, or daily life that cannot be explained by ordinary forgetfulness. This pattern reflects a dissociative process tied to trauma and leads to confusion and impairment as different self-states take control at different times. The memory gaps described without any change in identity fit dissociative amnesia rather than DID, and sleep problems or mood fluctuations alone do not capture the defining disruption of having multiple identities.

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