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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 
(cautionary statement)
 

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.

Reprinted with permission from the Diagnostic and Statistical Manual of Mental Disorders, fourth Edition. Copyright 1994 American Psychiatric Association

Also: folie ŕ deux



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