Mental health articles

OF mental health care and mentally ill

DSM diagnostic criteria for schizophrenia

For a diagnosis of schizophrenia to be made, DSM-IV-TR states that two or more of the following symptoms should be present for a signifi cant period of time during a one-month period:



disorganized speech: frequent derailment or incoherence

grossly disorganized or behaviour

negative symptoms: catatonic flattened mood, alogia or avolition.

Only one of these symptoms is required if the delusions are bizarre or the hallucinations comprise a voice keeping up a running commentary on the person’s behaviour or thoughts, or involve two or more voices conversing with each other. A second criterion is that the symptoms result in significant impairment.

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