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Scizophrenia and Other Psychotic Disorders

I. Classification of Scizophrenia and Other Psychotic Disorders (Diagnostic and Statistical Manual of Mental Disorders-.4th edition, DSM-1V):

A. Scizophrenia

Subtypes - Paranoid, Disorganized, Catatonic, Undifferentiated, and

B. Scizophreniform Disorder

Meets criteria for Scizophrenia but of less than 6 months duration

C. Scizoaffective Disorder

D. Brief Psychotic Disorder scizophrenia

Meets criteria for Scizophrenia but duration of more than I day but less than

E. Shared Psychotic Disorder (Folie a Deux)

Delusion develops in an individual in a close relationship with another person who already has an established delusion,

New delusion is usually of similar content to that of the person who has the established delusion

F.Psychotic Disorder due to a General Medical Condition

G.Substance Induced Psychotic Disorder
1t.Psychotic Disorder, Not Otherwise Specified

H. Scizophrenia

A. Diagnosis of exclusion without pathognomonic signs, symptoms, or lab findings

B. Essential features

1. Two or more of these symptoms for 1 month:

a. Delusions - fixed, false beliefs

b. Hallucinations - false sensory perceptions without external stimuli

c. Disorganized speech

d. Grossly disorganized behavior or catatonic behavior e. Negative symptoms