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Published on: November 21, 2013
On identifying the processes underlying schizophrenic speech disorder
1Community Support Services, Akron, Ohio, USA. ndochert@kent.edu
Schizophrenia Bulletin
|May 13, 2011
Summary
Schizophrenia speech difficulties are linked to cognitive deficits. Attention, working memory, and conceptual sequencing significantly explain communication failures in schizophrenia patients.
Area of Science:
- Neuroscience
- Psychiatry
- Linguistics
Background:
- Speech disorganization is a key symptom in schizophrenia, impacting communication.
- Neuropsychological deficits are implicated but not fully understood as causes of speech disorder.
Purpose of the Study:
- To investigate the relationship between specific neuropsychological deficits and speech disorganization in schizophrenia.
- To identify cognitive factors contributing to communication failures in schizophrenia.
Main Methods:
- Speech samples from 60 schizophrenia outpatients were analyzed for thought disorder, conceptual disorganization, linguistic breakdown, and communication failure.
- A neuropsychological test battery assessed cognitive functions relevant to speech production.
Main Results:
- Communication failure showed a stronger association with neuropsychological performance than other speech measures.
- Attention, immediate memory, working memory, organizational sequencing, and conceptual sequencing were significantly related to communication failures.
- Hierarchical regression indicated attention, working memory, and conceptual sequencing explained 29% of the variance in communication failures.
Conclusions:
- Cognitive functions, particularly attention, working memory, and conceptual sequencing, are significant predictors of communication failures in schizophrenia.
- Future research should explore auditory attention, source memory, emotional, and social cognitive deficits.
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