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How the Working Memory with Distributed Executive Control Model Accounts for Task Switching and Dual-Task Coordination Costs.

ABSTRACT: According to the working memory model with distributed executive control (WMDEC), working memory is not only used for temporary maintenance of information, but it also serves goal-directed action by maintaining task-related information. Such information may include the current action goal, the means selected to attain the goal, situational constraints, and interim processing results. A computational version of the WMDEC model was used to simulate human performance in a series of experiments that examined particular predictions regarding task switching costs, costs due to task and attention switching, to dual-task coordination in working memory tasks, and to experiments that required dual-task coordination of memorisation and task switching demands. The results of these simulations are reported and their implications for accounts of multi- and dual-tasking are discussed.

SUBMITTER: Vandierendonck A

PROVIDER: S-EPMC7792467 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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How the Working Memory with Distributed Executive Control Model Accounts for Task Switching and Dual-Task Coordination Costs.

Vandierendonck André A

Journal of cognition 20210107 1

According to the working memory model with distributed executive control (WMDEC), working memory is not only used for temporary maintenance of information, but it also serves goal-directed action by maintaining task-related information. Such information may include the current action goal, the means selected to attain the goal, situational constraints, and interim processing results. A computational version of the WMDEC model was used to simulate human performance in a series of experiments that ...[more]

PMID: 33506168

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Project description:[Correction Notice: An Erratum for this article was reported in Vol 45(9) of Journal of Experimental Psychology: Learning, Memory, and Cognition (see record 2019-48991-001). In the article, the copyright attribution was incorrectly listed and should have published under the Creative Commons CC-BY license. The correct copyright is "© 2018 The Author(s)." All versions of this article have been corrected.] Theories of working memory often disagree on the relationships between processing and storage, particularly on how heavily they rely on an attention-based limited resource. Some posit separation and specialization of resources resulting in minimal interference to memory when completing an ongoing processing task, while others argue for a greater overlap in the resources involved in concurrent tasks. Here, we present four experiments that investigated the presence or absence of dual-task costs for memory and processing. The experiments were carried in an adversarial collaboration in which researchers from three opposing theories collaboratively designed a set of experiments and provided differential predictions in line with each of their models. Participants performed delayed recall of aurally and visually presented letters and an arithmetic verification task either as single tasks or with the arithmetic verification task between presentation and recall of letter sequences. Single- and dual-task conditions were completed with and without concurrent articulatory suppression. A consistent pattern of dual-task and suppression costs was observed for memory, with smaller or null effects on processing. The observed data did not fit perfectly with any one framework, with each model having partial success in predicting data patterns. Implications for each of the models are discussed, with an aim for future research to investigate whether some combination of the models and their assumptions can provide a more comprehensive interpretation of the pattern of effects observed here and in relevant previous studies associated with each theoretical framework. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Dataset Information

How the Working Memory with Distributed Executive Control Model Accounts for Task Switching and Dual-Task Coordination Costs.

Publications

How the Working Memory with Distributed Executive Control Model Accounts for Task Switching and Dual-Task Coordination Costs.

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