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Hippocampal sharp-wave ripples in waking and sleeping states
Open accessAbstract
Waking and sleeping states are privileged periods for distinct mnemonic processes. In waking behavior, rapid retrieval of previous experience aids memory-guided decision making. In sleep, a gradual series of reactivated associations supports consolidation of episodes into memory networks. Synchronized bursts of hippocampal place cells during events called sharp-wave ripples communicate associated neural patterns across distributed circuits in both waking and sleeping states. Differences between sleep and awake sharp-wave ripples, and in particular the accuracy of recapitulated experience, highlight their state-dependent roles in memory processes.
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“The reactivation of task-relevant regions was found to be particular prominent during sleep oscillatory events linked to memory consolidation, such as spindles and SOs.”
From Sleep—A brain-state serving systems memory consolidation (2023) · cites this paper as [109]
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“Generally, sleep replay appears to feature a less faithful recapitulation of previous experience compared with wake replay.137,[154][155][156]”
From Sleep—A brain-state serving systems memory consolidation (2023) · cites this paper as [155]
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Metadata
- Authors
- Roumis, D. K., & Frank, L. M.
- Affiliations
- University of California, San Francisco (US)
- Corresponding author
- Frank, Loren M
- Venue
- Current Opinion in Neurobiology
- Publisher
- Elsevier BV
- Published
- 2015-12
- Volume
- 35
- Pages
- 6-12
- ISSN
- 0959-4388 (ISSN-L)
- PMC
- PMC4641767
- OpenAlex
- W301412097
- Semantic Scholar
- aa0b2b4f78ed570b27a468e1a3b483aff48de43e
- Cited by
- 155
- References
- 74
- Citations by year
- 2026: 8 · 2025: 25 · 2024: 9 · 2023: 14 · 2022: 13 · 2021: 10 · 2020: 10 · 2019: 18 · 2018: 24 · 2017: 8 · 2016: 12 · 2015: 2
- FWCI
- 1.51
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Current Opinion in Neurobiology (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- eScholarship (California Digital Library) (submittedVersion)
- Funders
- National Institute of Mental Health (R01MH105174, R01MH090188)
- National Institute of Neurological Disorders and Stroke (U01NS094288)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
- Keywords
- sharp-wave ripples, hippocampus, sleep, wakefulness, memory consolidation, memory retrieval, place cells, neural replay, memory-guided decision-making
- MeSH terms
- Animals, Hippocampus, Humans, Memory, Sleep, Wakefulness, Brain Waves
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