Goes along with thought disturbances, delusions and affective impairment without intellectual disabilities. Symptoms include: delusions, hallucinations, so-called "negative symptoms" (such as affective flattening, alogia or avolition), formal thought disorder, feelings of thought control from outside and behavioural changes of the person often leading to social withdrawal. Symptoms have to be present for at least one month. Often a prodromal phase can be seen in adolescents before the onset of schizophrenic symptoms. A prodromal phase can be accompanied by diminished interest, absence from work, social withdrawal and dysphoria to an extent atypical for the person affected. Several forms of schizophrenia can be differentiated including: paranoid schizophrenia, hebephrenic schizophrenia, catatonic schizophrenia, schizophrenia simplex and undifferentiated schizophrenia.
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Have you ever been envious of people who seem to have no end of clever ideas, who are able to think quickly in any situation, or who seem to have flawless memories? Could it be that they're just born smarter or quicker than the rest of us? Or are there some secrets that they might know that we don't?