Schizophrenia spectrum and other psychotic disorders including schizotypal personality disorder are defined by abnormalities in five domains: Delusions (false beliefs), Hallucinations (false perceptions), Disorganized thinking, disorganized or catatonic motor behavior and negative symptoms. The first four domains are categorized as positive symptoms.
Positive Symptoms of Schizophrenia
Positive symptoms are not generally found among individuals in the general population and include things such as delusions and hallucinations. For example, some people with schizophrenia hear voices that other people do not hear, see things other people do not see, or have paranoid thinking.
Negative Symptoms of Schizophrenia
Negative symptoms involve things that individuals with schizophrenia may lack such as interest in social relationships or blunted emotion. Other examples are diminished speech output (alogia), anhedonia (decreased ability to experience or recall pleasure and asociality- an apparent lack of interest in social interaction.
Treatment for Schizophrenia:
Schizophrenia usually begins in early adulthood and continues to progress if not treated. Treatment for positive symptoms involves taking the 1st or second generation antipsychotics. The only current treatment for negative symptoms is rTMS. Individual and group therapy is also beneficial once severe symptoms have been reduced.
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