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[Smoking habits in chronic schizophrenics]

K Fukui1, T Kobayashi, S Hayakawa

  • 1Department of Psychiatry, Kyoto Prefectural University of Medicine, Japan.

Arukoru Kenkyu to Yakubutsu Izon = Japanese Journal of Alcohol Studies & Drug Dependence
|December 1, 1995
PubMed
Summary

Smoking in chronic schizophrenia is linked to more severe negative symptoms, including attention deficits. Heavy smokers showed greater neuropsychological impairments, suggesting a potential self-medication effect.

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Area of Science:

  • Psychiatry
  • Neuroscience
  • Psychology

Context:

  • Investigated smoking habits in 48 chronic schizophrenic inpatients.
  • Classified subjects into non-smokers, moderate smokers, and heavy smokers.

Purpose:

  • To evaluate the relationship between smoking, tobacco dependence, and neuropsychological function in chronic schizophrenia.
  • To assess the correlation between smoking and the severity of negative symptoms in schizophrenia.

Summary:

  • Fagerstrom's Tolerance Questionnaire (FTQ) and Scales for the Assessment of Negative Symptoms (SANS) revealed a significant link between nicotine intake and negative symptoms like affective blunting and attention impairment.
  • Bender Gestalt Test (BGT) and Benton Visual Retention Test (BVRT) indicated visual-motor, attention, and memory disturbances, particularly in heavy smokers.

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Impact:

  • Findings suggest smoking may serve as a self-medication strategy for chronic schizophrenics to manage negative symptoms.
  • Highlights the complex interplay between nicotine dependence and cognitive deficits in schizophrenia.