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Targeting targeted memory reactivation: characteristics of cued reactivation in sleep

Abdellahi, Mahmoud E. A., Koopman, Anne C. M., Treder, Matthias S. ORCID: and Lewis, Penelope A. ORCID: 2023. Targeting targeted memory reactivation: characteristics of cued reactivation in sleep. NeuroImage 266 , 119820. 10.1016/j.neuroimage.2022.119820

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Targeted memory reactivation (TMR) is a technique in which sensory cues associated with memories during wake are used to trigger memory reactivation during subsequent sleep. The characteristics of such cued reactivation, and the optimal placement of TMR cues, remain to be determined. We built an EEG classification pipeline that discriminated reactivation of right- and left-handed movements and found that cues which fall on the up-going transition of the slow oscillation (SO) are more likely to elicit a classifiable reactivation. We also used a novel machine learning pipeline to predict the likelihood of eliciting a classifiable reactivation after each TMR cue using the presence of spindles and features of SOs. Finally, we found that reactivations occurred either immediately after the cue or one second later. These findings greatly extend our understanding of memory reactivation and pave the way for development of wearable technologies to efficiently enhance memory through cueing in sleep.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Computer Science & Informatics
Cardiff University Brain Research Imaging Centre (CUBRIC)
Additional Information: License information from Publisher: LICENSE 1: URL:, Start Date: 2022-12-15
Publisher: Elsevier
ISSN: 1053-8119
Date of First Compliant Deposit: 19 December 2022
Date of Acceptance: 15 December 2022
Last Modified: 19 May 2023 10:01

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