Effects of rule uncertainty on cognitive flexibility in a card-sorting paradigm

Acta Psychologica
Florian LangeBruno Kopp

Abstract

Cognitive flexibility has been studied in two separate research traditions. Neuropsychologists typically rely on rather complex assessment tools such as the Wisconsin Card Sorting Test (WCST). In contrast, task-switching paradigms are used in experimental psychology to obtain more specific measures of cognitive flexibility. We aim to contribute to the integration of these research traditions by examining the role of the key factor that differs between the WCST and experimental task-switching paradigms: rule uncertainty. In two experimental studies, we manipulated the degree of rule uncertainty after rule switches in a computerized version of the WCST. Across a variety of task parameters, reducing rule uncertainty consistently impaired the speed and accuracy of responses when the rule designated to be more likely turned out to be incorrect. Other performance measures such as the number of perseverative errors were not significantly affected by rule uncertainty. We conclude that a fine-grained analysis of WCST performance can dissociate behavioural indicators that are affected vs. unaffected by rule uncertainty. By this means, it is possible to integrate WCST results and findings obtained from task-switching paradigms that do not...Continue Reading

Citations

Apr 2, 2020·Frontiers in Psychology·Xia FengChengzhi Feng
Sep 24, 2020·Scientific Reports·Alexander SteinkeBruno Kopp
Feb 6, 2020·International Journal of Psychology : Journal International De Psychologie·Tochukwu NwezeFlorian Lange
Jun 10, 2021·Brain Structure & Function·Antonino VallesiLorenzo Pini

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