DSM-IV-TR Diagnostic Criteria for Schizophrenia A. characteristic symptoms (active phase): > 2 of the following, each present for...
DSM-IV-TR Diagnostic Criteria for Schizophrenia
A. characteristic symptoms (active phase): >2 of the following, each present for a significant portion of time during a 1-month period (or less if successfully treated):
- delusions
- hallucinations
- disorganized speech (e.g. frequent derailment or incoherence)
- grossly disorganized or catatonic behaviour
- negative symptoms, e.g. affective flattening, alogia (inability to speak), or avolition (inability to initiate and persist in goal-directed activities)
Note: only 1 - symptom is required if delusions are bizarre or hallucinations consist of a voice keeping a running commentary on the person's behaviour or thoughts, or 2 or more voices conversing with each other
B. social/occupational dysfunction: >1 major areas of functioning (work, interpersonal relations, self-care) markedly below the level achieved prior to the onset of symptoms
C. continuous signs of disturbance for >6 months, including >1 month of active phase symptoms; may include prodromal or residual phases
D. schizoaffective and mood disorders excluded
E. the disturbance is not due to the direct physiological effects of a substance or a general medical condition (GMC)
F. if history of pervasive developmental disorder, additional diagnosis of schizophrenia is made only if prominent delusions or hallucinations are also present for at least 1 month
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