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Generalization of training effects in schizophrenia.
A S Bellack1, L S Weinhardt, J M Gold
1VA Capitol Network MIRECC, University of Maryland School of Medicine, 737 West Lombard Street, 21201, Baltimore, MD, USA
Schizophrenia Research
|April 11, 2001
Summary
Training on cognitive tests improved performance in schizophrenia patients, demonstrating generalization. This suggests targeted cognitive training may benefit rehabilitation programs for schizophrenia.
Area of Science:
- Neuroscience
- Clinical Psychology
- Psychiatry
Background:
- Schizophrenia is associated with significant cognitive deficits.
- Investigating cognitive training and generalization is crucial for rehabilitation.
Purpose of the Study:
- To investigate transfer of training (generalization) in schizophrenia patients.
- To determine if cognitive training on specific tests leads to improvements in untrained cognitive tasks.
Main Methods:
- 33 schizophrenia patients were randomly assigned to Wisconsin Card Sort Test training (WCST-T), Halstead Category Test training (CAT-T), or no training (No-T).
- All participants completed WCST and CAT at baseline and post-intervention.
- A neuropsychological battery was administered to assess cognitive function.
Main Results:
- WCST-T and CAT-T groups showed significant improvements on trained tests and moderate gains on untrained tests.
- The No-T group did not improve on either test, indicating training-specific effects.
- Generalization extent correlated with baseline neuropsychological performance (Spearman's rho=0.56, P<0.05).
Conclusions:
- Cognitive training paradigms can produce generalization of skills in schizophrenia.
- Observed changes are attributable to training, not mere practice effects.
- Findings support the use of targeted cognitive training in schizophrenia rehabilitation programs.