Delayed emergence of EEG-based task-relevant representations

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Menghi, N., Melega, G., Lidstrom, A., Renoult, L. and Penny, W. (2025) Delayed emergence of EEG-based task-relevant representations. Neurobiology of Learning and Memory, 219. ISSN 1074-7427

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Abstract

This paper examines the effect of a period of quiet wakefulness (an “offline wake” state) on the performance of a decision making task. An initial feedback-based learning period using a subset of stimuli, was followed by (i) a “pre-test” phase using both “old” and “new” stimuli without feedback, (ii) a delay period of either active or offline wakefulness, and (iii) a “post-test” period, again without feedback. Behaviourally, we found that offline wakefulness significantly improved generalization — the ability to apply learned knowledge to novel stimuli. However, we did not find any EEG-based neural correlates of this generalization improvement. Rather, we found that task-relevant representations emerged only after the delay period, independently of whether the delay was active or offline.

Item Type: Article
Additional Information: Data availability: Data will be made available on request.
Uncontrolled Keywords: eeg,generalization,representation learning,wakeful rest,experimental and cognitive psychology,cognitive neuroscience,behavioral neuroscience ,/dk/atira/pure/subjectarea/asjc/3200/3205
Faculty \ School: Faculty of Social Sciences > School of Psychology
UEA Research Groups: Faculty of Arts and Humanities > Research Groups > UEA Experimental Philosophy Group
Faculty of Social Sciences > Research Groups > Cognition, Action and Perception
Faculty of Social Sciences > Research Centres > Centre for Behavioural and Experimental Social Sciences
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Depositing User: LivePure Connector
Date Deposited: 06 Oct 2025 11:30
Last Modified: 25 Oct 2025 16:32
URI: https://ueaeprints.uea.ac.uk/id/eprint/100641
DOI: 10.1016/j.nlm.2025.108052

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