Symptoms of Schizophrenia Positive vs. Negative Symptom Positive Symptoms reflect an excess or distortion of normal functioning. Positive symptoms include: (1) delusions, or false beliefs about reality; (2) hallucinations, or false sensory perceptions; and (3) severely disorganized thought processes (thought disorder), speech, and behavior. Negative Symptoms reflect a restriction or reduction of normal functions, such as greatly reduced motivation, movement, emotional expressiveness ( flat or blunted affect), or speech (poverty of speech). Delusions and Hallucinations Delusions: Falsely held beliefs that persist in spite of contradictory evidence.
Hallucinations: False or distorted perceptions that seem vividly real to the person experiencing them. Over 60% of schizophrenics report auditory hallucinations; 30% report visual hallucinations; 15% report tactile hallucinations; and about 10% report gustatory and/or olfactory hallucinations. Onset, Course, and Prognosis Chronic (or Process) Schizophrenia: Symptoms develop gradually, emerging from a long history of social inadequacy. Those with chronic (process) schizophrenia have a much poorer prognosis. Recovery is unlikely. (While not a hard and fast rule, these individuals tend to exhibit more of the "negative" symptoms described above.) Acute (or Reactive) Schizophrenia: Symptoms develop suddenly, seemingly as a reaction to stress. Those with acute (reactive) schizophrenia have a better prognosis. They tend to respond more positively to drug therapy. (Again, while not a hard and fast rule, these individuals ten to exhibit more of the "positive" symptoms described above.) |
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