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What have cognitive deficits to do with schizophrenic symptoms?
The British Journal of Psychiatry : the Journal of Mental Science
|February 1, 1977
Summary
Cognitive deficits in schizophrenia, including poor filtering and slow responses, may cause information overload. Patient variability might stem from different coping strategies for this overload.
Area of Science:
- Cognitive psychology
- Psychiatry
- Neuroscience
Background:
- Schizophrenia presents with diverse cognitive deficits and variable symptomatology.
- Understanding the link between cognitive dysfunction and behavioral symptoms is crucial.
Purpose of the Study:
- To explore the relationship between cognitive deficits and schizophrenia symptoms.
- To propose a model where information overload, due to defective filtering and slow response selection, underlies acute schizophrenia.
Main Methods:
- Conceptual analysis of existing literature on cognitive deficits in schizophrenia.
- Examination of adaptation strategies in normal subjects under information overload.
- Review of acute-chronic differences in schizophrenia literature.
Main Results:
- Defective filtering and slow response selection in acute schizophrenia may lead to information overload.
- Variability in schizophrenia symptoms could reflect differential adaptations to cognitive overload.
- Adaptation methods depend on overload severity, environment, and personality.
Conclusions:
- The proposed model offers a framework for understanding schizophrenia symptomatology and variability.
- Further longitudinal studies are needed to confirm intra-individual changes.
- Operant procedures may help modify behavioral abnormalities in schizophrenia.