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Related Experiment Videos

Communication disturbances in schizophrenia: a two-process formulation

N M Docherty1

  • 1Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06519, USA.

Comprehensive Psychiatry
|May 1, 1995
PubMed
Summary

Communication disturbances in schizophrenia differ based on symptom presentation. Those without negative symptoms show links to positive symptoms and medication response, unlike patients with negative symptoms.

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Area of Science:

  • Psychiatry
  • Linguistics
  • Neuroscience

Background:

  • Schizophrenia is characterized by communication disturbances, including unclear linguistic references.
  • These disturbances may stem from distinct pathophysiologic processes, either excess-related or deficit-related.

Purpose of the Study:

  • To investigate the association between communication disturbances and symptom presentation in schizophrenia.
  • To test a two-process hypothesis of schizophrenic communication disturbance.

Main Methods:

  • Analyzed audiotaped speech samples from 28 acutely ill schizophrenic inpatients.
  • Divided patients into two groups: those with negative symptoms and those without.
  • Correlated communication disturbance levels with positive symptom severity and neuroleptic responsiveness.

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Main Results:

  • Overall communication disturbance levels did not differ between groups.
  • In patients without negative symptoms, disturbance correlated with positive symptom severity and medication responsiveness.
  • In patients with negative symptoms, disturbance did not correlate with positive symptoms and negatively correlated with medication responsiveness.

Conclusions:

  • Findings support a two-process hypothesis for communication disturbances in schizophrenia.
  • Suggests different underlying mechanisms for communication issues based on symptom profile.
  • Highlights the differential impact of negative symptoms on the relationship between communication and treatment response.