[From American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders. 4th ed. Text rev. Washington, DC: American Psychiatric Association; copyright 2000.] ...
Paranoid type
A type of schizophrenia in which the following criteria are met:- Preoccupation with one or more delusions or frequent auditory hallucinations.
- None of the following is prominent: disorganized speech, disorganized or catatonic behavior, or flat or inappropriate affect.
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Disorganized type
A type of schizophrenia in which the following criteria are met:- All of the following are prominent:
- disorganized speech
- disorganized behavior
- flat or inappropriate affect
- The criteria are not met for catatonic type.
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| Catatonic type |
A type of schizophrenia in which the clinical picture is dominated by at least two of the following:- motoric immobility as evidenced by catalepsy (including waxy flexibility) or stupor
- excessive motor activity (that is apparently purposeless and not influenced by external stimuli)
- extreme negativism (an apparently motiveless resistance to all instructions or maintenance of a rigid posture against attempts to be moved) or mutism
- peculiarities of voluntary movement as evidenced by posturing (voluntary assumption of inappropriate or bizarre postures), stereotyped movements, prominent mannerisms, or prominent grimacing
- echolalia or echopraxia
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| Undifferentiated type |
| A type of schizophrenia in which symptoms that meet Criterion A are present, but the criteria are not met for the paranoid, disorganized, or catatonic type. |
| Residual type |
A type of schizophrenia in which the following criteria are met:- Absence of prominent delusions, hallucinations, disorganized speech, and grossly disorganized or catatonic behavior.
- There is continuing evidence of the disturbance, as indicated by the presence of negative symptoms or two or more symptoms listed in Criterion A for schizophrenia, present in an attenuated form (e.g., odd beliefs, unusual perceptual experiences).
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