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The three-factor model of symptoms in schizophrenia[1] is a model of schizophrenia

The three factors identified are:

  • 'disorganization syndrome
  • 'reality distortion' (involving delusions and hallucinations)
  • 'psychomotor poverty' (poverty of speech, lack of spontaneous movement and various aspects of blunting of emotion).

References

  1. Liddle PF. (1987) The symptoms of chronic schizophrenia. A re-examination of the positive-negative dichotomy. British Journal of Psychiatry, 151, 145-51.