dissociative disorder, a category of DSM-5 disorder in which emotional conflicts are so repressed that a separation or split in the personality occurs, resulting in an altered state of consciousness or a confusion in identity. Symptoms may include amnesia, somnambulism, fugue, dream state, and dissociative identity disorder. It is caused by an inability to cope with severe stress or conflict and usually occurs suddenly, after a situation catastrophic to the person. Treatment may include hypnosis, especially when amnesia is the primary symptom; psychotherapy; and use of antianxiety medication. Also called dissociative reaction. Compare conversion disorder. See also dissociation.
