Revealing visual working memory operations with pupillometry: Encoding, maintenance, and prioritization.
encoding
maintenance
prioritization
pupillometry
visual working memory
Journal
Wiley interdisciplinary reviews. Cognitive science
ISSN: 1939-5086
Titre abrégé: Wiley Interdiscip Rev Cogn Sci
Pays: United States
ID NLM: 101524169
Informations de publication
Date de publication:
06 Nov 2023
06 Nov 2023
Historique:
revised:
22
09
2023
received:
16
06
2023
accepted:
25
09
2023
medline:
7
11
2023
pubmed:
7
11
2023
entrez:
7
11
2023
Statut:
aheadofprint
Résumé
Pupillary dynamics reflect effects of distinct and important operations of visual working memory: encoding, maintenance, and prioritization. Here, we review how pupil size predicts memory performance and how it provides novel insights into the mechanisms of each operation. Visual information must first be encoded into working memory with sufficient precision. The depth of this encoding process couples to arousal-linked baseline pupil size as well as a pupil constriction response before and after stimulus onset, respectively. Subsequently, the encoded information is maintained over time to ensure it is not lost. Pupil dilation reflects the effortful maintenance of information, wherein storing more items is accompanied by larger dilations. Lastly, the most task-relevant information is prioritized to guide upcoming behavior, which is reflected in yet another dilatory component. Moreover, activated content in memory can be pupillometrically probed directly by tagging visual information with distinct luminance levels. Through this luminance-tagging mechanism, pupil light responses reveal whether dark or bright items receive more attention during encoding and prioritization. Together, conceptualizing pupil responses as a sum of distinct components over time reveals insights into operations of visual working memory. From this viewpoint, pupillometry is a promising avenue to study the most vital operations through which visual working memory works. This article is categorized under: Psychology > Attention Psychology > Memory Psychology > Theory and Methods.
Types de publication
Journal Article
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
e1668Subventions
Organisme : European Research Council
ID : 863732
Pays : International
Informations de copyright
© 2023 The Authors. WIREs Cognitive Science published by Wiley Periodicals LLC.
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