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Related Experiment Videos

Conceptual sequencing and disordered speech in schizophrenia.

N M Docherty1, M J Hall, S W Gordinier

  • 1Kent State University, Dept. of Psychology, OH 44242, USA.

Schizophrenia Bulletin
|September 19, 2000
PubMed
Summary

Cognitive impairments, including attention and memory deficits, are linked to specific language and thought disturbances in schizophrenia. Conceptual sequencing ability strongly correlates with language structural weaknesses in patients.

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Area of Science:

  • Cognitive Psychology
  • Psycholinguistics
  • Clinical Neuroscience

Background:

  • Schizophrenia is characterized by thought and language disturbances.
  • Cognitive impairments, including attention, memory, and conceptual sequencing, are common in schizophrenia.
  • The relationship between specific cognitive deficits and distinct symptom clusters requires further elucidation.

Purpose of the Study:

  • To investigate the association between specific cognitive impairments (attention, memory, conceptual sequencing) and particular thought and language symptoms in schizophrenia.
  • To determine if communication failures in schizophrenia relate to underlying cognitive processes.
  • To identify unique cognitive profiles associated with different types of communication disturbances.

Main Methods:

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  • Speech samples from stable schizophrenia outpatients were analyzed for six types of communication failures.
  • Failures were classified based on hypothesized underlying cognitive processes.
  • Regression analyses were used to examine associations between cognitive abilities and communication failure types.

    • Main Results:

    • Four types of communication failures, linked to language structural weaknesses, showed significant associations with conceptual sequencing ability.
    • Each of these four failure types correlated with a unique combination of attention, memory, and conceptual sequencing processes.
    • Communication disturbances not indicative of language structural issues were not associated with the assessed cognitive weaknesses.

    Conclusions:

    • Conceptual sequencing ability is a key cognitive factor associated with language structural weaknesses in schizophrenia.
    • Specific patterns of cognitive impairments underpin distinct communication disturbances in schizophrenia.
    • These findings highlight the cognitive underpinnings of thought and language symptoms in schizophrenia.