Processing speed predicts mean performance in task-switching but not task-switching cost

Li, B., Li, X., Stoet, G. and Lages, M. (2022) Processing speed predicts mean performance in task-switching but not task-switching cost. Psychological Reports, (doi: 10.1177/00332941211072228) (PMID:35084254) (Early Online Publication)

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Abstract

In several studies, it has been suggested that task-switching performance is linked to processing speed. Here we argue that the relation between processing speed and high-level cognitive ability found in previous studies may be due to confounded measurements of processing speed and task-switching ability. In the present study, we required participants to complete an inspection time (IT) task to probe their processing speed. We employed conventional task-switching paradigms but applied a linear integrated speed-accuracy score (LISAS) which combines latency and accuracy scores to express task-switching ability. The results of regression analyses show that IT predicted average performance in task-switching paradigms. However, IT did not relate to any specific effects common in the task-switching task, which contradicts previous results. Our results suggest independent mechanisms of processing speed and tasks that require a high level of cognitive flexibility and control.

Item Type:Articles
Status:Early Online Publication
Refereed:Yes
Glasgow Author(s) Enlighten ID:Lages, Dr Martin
Authors: Li, B., Li, X., Stoet, G., and Lages, M.
College/School:College of Medical Veterinary and Life Sciences > School of Health & Wellbeing > Robertson Centre
College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
Journal Name:Psychological Reports
Publisher:SAGE
ISSN:0033-2941
ISSN (Online):1558-691X
Published Online:27 January 2022
Copyright Holders:Copyright © The Author(s) 2022
First Published:First published in Psychological Reports 2022
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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