The Unity and Diversity of Executive Functions and Their Contributions to Complex ‘‘Frontal Lobe’’ Tasks: A Latent Variable Analysis – Miyake et al.

This individual differences study examined the separability of three often postulated executive functions-mental set shifting ("Shifting"), information updating and monitoring ("Updating"), and inhibition of prepotent responses ("Inhibition")-and their roles in complex "frontal lobe" or "executive" tasks.

Article Abstract

This individual differences study examined the separability of three often postulated executive functions-mental set shifting ("Shifting"), information updating and monitoring ("Updating"), and inhibition of prepotent responses ("Inhibition")-and their roles in complex "frontal lobe" or "executive" tasks. One hundred thirty-seven college students performed a set of relatively simple experimental tasks that are considered to predominantly tap each target executive function, as well as a set of frequently used executive tasks: the Wisconsin Card Sorting Test (WCST), Tower of Hanoi (TOH), random number generation (RNG), operation span, and dual tasking. Confirmatory factor analysis indicated that the three target executive functions are moderately correlated with one another, but are clearly separable. Moreover, structural equation modeling suggested that the three functions contribute differentially to performance on complex executive tasks. Specifically, WCST performance was related most strongly to Shifting, TOH to Inhibition, RNG to Inhibition and Updating, and operation span to Updating. Dual task performance was not related to any of the three target functions. These results suggest that it is important to recognize both the unity and diversity of executive functions and that latent variable analysis is a useful approach to studying the organization and roles of executive functions.

MARIO Connections

This study enriched our understanding of executive functions and how they interact or operate independently depending upon the task a student engages in. This increased awareness is present in both the design of our course elementary EF skills module and throughout the MARIO Framework when self-directed learning is referenced.

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Join the MARIO Family

We are a dedicated group of learners that are constantly seeking to improve the lives of the children we care for. Whether you are a teacher, parent, assistant, or administrator, we give you free access to the most recent special education related research and practices available. Our twice monthly MARIO Memo summarizes and shares studies from peer-reviewed journals, while our learning letters provide insights from MARIO classrooms.

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