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The relationships between cognitive reserve, cognitive functioning and quality of life in first-episode schizophrenia spectrum disorders

M. Rodriguez, K. Knížková, B. Keřková, A. Siroňová, P. Šustová, J. Jonáš, F. Španiel

. 2022 ; 310 (-) : 114479. [pub] 20220223

Jazyk angličtina Země Irsko

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/bmc22019061

Cognitive reserve (CR) has been conceptualized as an individual's ability to optimize or maximize performance through differential recruitment of brain networks. As such, CR may contribute to the heterogeneity of cognitive deficits observed in schizophrenia. This study aimed to assess the relationships between CR, cognition and quality of life in first-episode (FES) patients. A total of 137 patients with either ICD-10 schizophrenia or "acute and transient psychotic disorders" diagnosis, and 62 healthy controls had completed a comprehensive assessment of six cognitive domains: speed of processing, attention, working memory/flexibility, verbal memory, visual memory, and abstraction/executive functioning. CR was calculated from the participants' education, premorbid IQ, and socioeconomic status. The results suggested that in patients, CR was positively related to cognitive performance in all domains, explaining 42.6% of the variance observed in cognition overall. Effects of CR in the control group were limited to three domains: speed of processing, abstraction/executive function and working memory/flexibility. These results suggest that CR largely contributes to cognitive variations present in FES patients. In addition, CR was negatively related to the social construct of patients' quality of life, and positively to symptom severity and general functioning.

Citace poskytuje Crossref.org

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$a Cognitive reserve (CR) has been conceptualized as an individual's ability to optimize or maximize performance through differential recruitment of brain networks. As such, CR may contribute to the heterogeneity of cognitive deficits observed in schizophrenia. This study aimed to assess the relationships between CR, cognition and quality of life in first-episode (FES) patients. A total of 137 patients with either ICD-10 schizophrenia or "acute and transient psychotic disorders" diagnosis, and 62 healthy controls had completed a comprehensive assessment of six cognitive domains: speed of processing, attention, working memory/flexibility, verbal memory, visual memory, and abstraction/executive functioning. CR was calculated from the participants' education, premorbid IQ, and socioeconomic status. The results suggested that in patients, CR was positively related to cognitive performance in all domains, explaining 42.6% of the variance observed in cognition overall. Effects of CR in the control group were limited to three domains: speed of processing, abstraction/executive function and working memory/flexibility. These results suggest that CR largely contributes to cognitive variations present in FES patients. In addition, CR was negatively related to the social construct of patients' quality of life, and positively to symptom severity and general functioning.
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$a Knížková, Karolína $u National Institute of Mental Health, Klecany, Czech Republic; Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic. Electronic address: karolina.knizkova@nudz.cz
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$a Keřková, Barbora $u National Institute of Mental Health, Klecany, Czech Republic
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$a Siroňová, Aneta $u National Institute of Mental Health, Klecany, Czech Republic; Department of Psychology, Faculty of Social Studies, Masaryk University, Brno, Czech Republic
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$a Šustová, Petra $u National Institute of Mental Health, Klecany, Czech Republic; Department of Psychology, Faculty of Arts, Charles University in Prague, Czech Republic
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$a Jonáš, Juraj $u National Institute of Mental Health, Klecany, Czech Republic; Department of Psychology, Faculty of Arts, Charles University in Prague, Czech Republic
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$a Španiel, Filip $u National Institute of Mental Health, Klecany, Czech Republic; Department of Psychiatry and Medical Psychology, Third Faculty of Medicine, Charles University in Prague, Czech Republic
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