Psychotherapy High Wycombe Psychotherapy High Wycombe - Last updated 23 April 2024

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DSM-IV: Shared Psychotic Disorder

This psychotic mental disorder is diagnosed when delusions develop in an individual involved in a close relationship with another individual already afflicted with delusions arising out of a different psychosis such as Schizophrenia, Delusional Disorder or psychotic Major Depression.

Diagnostic criteria for 297.3 Shared Psychotic Disorder

A. A delusion develops in an individual in the context of a close relationship with another person(s), who has an already-established delusion.

B. The delusion is similar in content to that of the person who already has the established delusion.

C. The disturbance is not better accounted for by another Psychotic Disorder (e.g. Schizophrenia) or a Mood Disorder With Psychotic Features and is not due to the direct physiological effects of a substance (e.g. a drug of abuse, a medication) or a general medical condition.

Based on the Diagnostic & Statistical Manual of Mental Disorders, 4th edition APA

Also: folie à deux

The online Diagnostic & Statistical Manual of Mental Disorders lists most of the major psychological disorders and illnesses and lists the criteria that must be fulfilled in order for a diagnosis to be made. This resource is not a substitute for proper professional psychiatric diagnosis.