Article (Scientific journals)
Between-item similarity frees up working memory resources through compression: A domain-general property.
Kowialiewski, Benjamin; Lemaire, Benoît; Portrat, Sophie
2022In Journal of Experimental Psychology: General, 151 (11), p. 2641 - 2665
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Keywords :
Cognition; Humans; Physical Phenomena; Semantics; Memory, Short-Term; Mental Recall; Attentional resources; Compression; Similarity; Working memory; Experimental and Cognitive Psychology; Psychology (all); Developmental Neuroscience; General Psychology
Abstract :
[en] Compression, the ability to recode information in a denser format, is a core property of working memory (WM). Previous studies have shown that the ability to compress information largely benefits WM performance. Importantly, recent evidence also suggests compression as freeing up WM resources, thus enhancing recall performance for other, less compressible information. Contrary to the traditional view positing that between-item similarity decreases WM performance, this study shows that between-item similarity can be used to free up WM resources through compression. Across a series of four experiments, we show that between-item similarity not only enhances recall performance for similar items themselves, but also for other, less compressible items within the same list, and this in the semantic (Experiment 1), phonological (Experiment 2), visuospatial (Experiment 3), and visual (Experiment 4) domains. Across these different domains, a consistent pattern of results emerged: between-item similarity proactively-but not retroactively-enhanced WM performance for other items, and this as compared with a condition in which between-item similarity at the whole-list level was minimized. We propose that between-item similarity in any domain may impact WM using the same underlying machinery: via a compression mechanism, which allows an efficient reallocation of WM resources. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
Disciplines :
Theoretical & cognitive psychology
Author, co-author :
Kowialiewski, Benjamin  ;  Université de Liège - ULiège > Département de Psychologie ; Department of Psychology
Lemaire, Benoît;  LPNC
Portrat, Sophie;  LPNC
Language :
English
Title :
Between-item similarity frees up working memory resources through compression: A domain-general property.
Publication date :
November 2022
Journal title :
Journal of Experimental Psychology: General
ISSN :
0096-3445
eISSN :
1939-2222
Publisher :
American Psychological Association, United States
Volume :
151
Issue :
11
Pages :
2641 - 2665
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ANR - French National Research Agency [FR]
Funding text :
This study was funded by the French National Research Agency (ANR) under the CHUNKED Project ANR-17-CE28-0013-03. We thank all the participants for their time devoted to this study
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since 18 December 2023

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