ArticleCommunications biology2025
Slow-wave sleep and REM sleep differentially contribute to memory representational transformation.
Article in Communications biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed.
- The role of sleep in strengthening face learning and memory consolidation: A systematic review.Cognitive, affective & behavioral neuroscience · 2026Review
- Sleep strengthens successor representations of learned sequences in humans.PLoS biology · 2026Article
- Slow-wave sleep and REM sleep differentially contribute to memory representational transformation.Communications biology · 2025Article
- Phase similarity between similar objects indicates representational merging across retrieval training but not sleep.Imaging neuroscience (Cambridge, Mass.)Article
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Authors and funding
6 authors.
Funding
Abstract
Sleep consolidates memories. Yet how sleep preserves precise memories while transforming them into abstract and categorical knowledge remains unclear. Using electroencephalography and representational similarity analysis, we examined memory representational transformation across overnight sleep. We focused on item-level representations, which reflect specific details of individual memories, and category-level representations, which capture shared conceptual features across items from the same category. Our results showed that after sleep, item-level representations were reduced, while category-level representations were preserved. Notably, a higher ratio of rapid eye movement (REM) to slow-wave sleep (SWS) predicted greater item-level reduction and category-level enhancement. Additionally, theta (4-7 Hz) and beta (15-25 Hz) power during REM sleep were positively associated with these memory representational transformations, whereas slow oscillation-related (1-1.25 Hz) power during SWS showed the opposite pattern. Our findings suggest the differential roles of SWS and REM in balancing memory preservation and transformation.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.