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Individual differences |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |
Symptoms in schizophrenia can be categorised in two ways:
- Positive symptoms (those additional to normal experience and behavior) 'Positive symptoms' describe psychosis and typically include delusions, hallucinations and thought disorder.
- Negative symptoms describe inappropriate or nonpresent emotion, poverty of speech, and lack of motivation.
In three-factor models of schizophrenia, a third symptom grouping, the so-called disorganization syndrome, is also given. This considers thought disorder and related disorganized behavior to be in a separate symptom cluster from delusions and hallucinations.