Cited by 133Sleep and Wakefulness ResearchMemory and Neural MechanismsNeural dynamics and brain function

Neural representations during sleep: From sensory processing to memory traces

Hennevin, Elizabeth, Huetz, Chloé, Edeline, Jean-Marc·2007·Neurobiology of Learning and Memory

Abstract

In the course of a day, the brain undergoes large-scale changes in functional modes, from attentive wakefulness to the deepest stage of sleep. The present paper evaluates how these state changes affect the neural bases of sensory and cognitive representations. Are organized neural representations still maintained during sleep? In other words, despite the absence of conscious awareness, do neuronal signals emitted during sleep contain information and have a functional relevance? Through a critical evaluation of the animal and human literature, neural representations at different levels of integration (from the most elementary sensory level to the most cognitive one) are reviewed. Recordings of neuronal activity in animals at presentation of neutral or significant stimuli show that some analysis of the external word remains possible during sleep, allowing recognition of behaviorally relevant stimuli. Event-related brain potentials in humans confirm the preservation of some sensory integration and discriminative capacity. Behavioral and neuroimaging studies in humans substantiate the notion that memory representations are reactivated and are reorganized during post-learning sleep; these reorganisations may account for the beneficial effects of sleep on behavioral performance. Electrophysiological results showing replay of neuronal sequences in animals are presented, and their relevance as neuronal correlates of memory reactivation is discussed. The reviewed literature provides c…

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Crossref · 10.1016/j.nlm.2006.10.006

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  • In animals, REM sleep is consistently associated with strengthening of conditioned fear memories.

    “In animals, REM sleep has been consistently associated with a strengthening of conditioned fear memories (see sect.IIB; for reviews, see, e.g., Refs. 538, 807, 1092Refs. 538, 807, , 1094)).”

    From About Sleep's Role in Memory (2013) · cites this paper as [538]

  • Initial studies showing reactivation of assembly firing patterns during sleep were criticized because the tested animals were highly overtrained in the spatial tasks.

    “Results from initial studies showing reactivation of assembly firing patterns during sleep were criticized because the tested animals were highly overtrained in the spatial tasks (538, 1204).”

    From About Sleep's Role in Memory (2013) · cites this paper as [538]

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Authors
Hennevin, E., Huetz, C., & Edeline, J.-M.
Affiliations
Université Paris-Sud (FR)
Corresponding author
Hennevin, Elizabeth
Venue
Neurobiology of Learning and Memory
Publisher
Elsevier BV
Published
2007-03
Volume
87
Issue
3
Pages
416-440
ISSN
1074-7427 (ISSN-L)
OpenAlex
W2082903098
Cited by
133
References
41
Citations by year
2026: 1 · 2025: 3 · 2024: 2 · 2023: 7 · 2022: 6 · 2021: 5 · 2020: 7 · 2019: 28 · 2018: 1 · 2017: 5 · 2016: 9 · 2015: 6 · 2014: 10 · 2013: 6 · 2012: 5
FWCI
3.08
Type
journal article
Language
en
Open access
closed
Locations
  • Neurobiology of Learning and Memory (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
sleep, neural representations, memory reactivation, memory consolidation, memory reorganization, event-related potentials, sleep-dependent memory, unconscious processes
MeSH terms
Animals, Brain, Evoked Potentials, Humans, Learning, Memory, Neuronal Plasticity, Neurons, Sleep

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