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Cognitive remediation therapy in schizophrenia: randomised controlled trial
Til Wykes1, Clare Reeder, Sabine Landau
1Department of Psychology, Kings College London, Institute of Psychiatry, London, UK. t.wykes@iop.kcl.ac.uk
Summary
Cognitive remediation therapy significantly improved working memory in schizophrenia patients, leading to better social functioning. This therapy offers durable cognitive benefits with cost-effectiveness.
Area of Science:
- Neuroscience
- Psychiatry
- Clinical Psychology
Background:
- Cognitive deficits are common in schizophrenia, impacting long-term patient outcomes.
- These cognitive difficulties significantly hinder overall functioning and quality of life.
Purpose of the Study:
- To assess the efficacy of cognitive remediation therapy (CRT) for cognitive impairments in individuals with schizophrenia.
- To determine if CRT improves specific cognitive domains such as working memory, flexibility, and planning.
Main Methods:
- A single-blind randomized controlled trial involving 85 schizophrenia patients.
- Participants received either 40 sessions of CRT or treatment as usual.
- Cognitive functions were measured at baseline, week 14, and week 40.
Main Results:
- CRT led to durable improvements in working memory (effect size 0.34) and showed a trend towards improved cognitive flexibility.
- Enhanced working memory correlated with improved social functioning.
- CRT was associated with lower initial costs, and cost-effectiveness analysis indicated minimal additional cost for memory improvements.
Conclusions:
- Cognitive remediation therapy demonstrates effectiveness in achieving lasting improvements in working memory for individuals with schizophrenia.
- These memory enhancements are linked to better social functioning, suggesting CRT's value in managing severe mental illness.
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