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Analyzing structural and functional brain changes related to an integrative cognitive remediation program for
Agurne Sampedro1, Naroa Ibarretxe-Bilbao1, Javier Peña1
1University of Deusto, Faculty of Health Sciences, Department of Psychology, Bilbao, Spain.
Schizophrenia Research
|March 25, 2023
Summary
This study investigated brain changes from cognitive remediation in schizophrenia patients. While the REHACOP program improved cognition and function, significant brain changes were not detected, suggesting further research is needed.
Area of Science:
- Neuroscience
- Psychiatry
- Cognitive Science
Background:
- Cognitive remediation improves cognition in schizophrenia.
- Specific functional and structural brain changes from integrative programs are not well understood.
Purpose of the Study:
- To analyze functional and structural brain changes after the REHACOP integrative cognitive remediation program in schizophrenia patients.
- To investigate the impact of combined cognitive remediation, social cognitive training, and skills training on brain structure and function.
Main Methods:
- 59 schizophrenia patients were assigned to the REHACOP or active control group for 20 weeks.
- Neuroimaging (T1-weighted, diffusion-weighted, fMRI) and assessments were conducted at baseline and follow-up.
- Analyses included voxel-based morphometry, tract-based spatial statistics, resting-state functional connectivity, and memory paradigm activation.
Main Results:
- Repeated-measure analyses showed cognitive and functional improvements but no significant group-level brain changes.
- Intragroup analyses in the REHACOP group revealed increased gray matter volume and cortical thickness in right temporal regions.
- The lack of significant group findings may be due to limited statistical power from a small sample size.
Conclusions:
- The REHACOP program improved cognition and functional outcomes in schizophrenia patients.
- While group-level brain changes were not significant, temporal lobe changes were observed within the treatment group.
- Further research with larger sample sizes is necessary to confirm temporal lobe involvement in cognitive remediation.
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