Cited by 837Sleep and Wakefulness ResearchNeuroscience and Neuropharmacology ResearchMemory and Neural Mechanisms

Molecular and electrophysiological evidence for net synaptic potentiation in wake and depression in sleep

Vyazovskiy, Vladyslav V, Cirelli, Chiara, Pfister-Genskow, Martha, Faraguna, Ugo, Tononi, Giulio·2008·Nature Neuroscience

Abstract

Plastic changes occurring during wakefulness aid in the acquisition and consolidation of memories. For some memories, further consolidation requires sleep, but whether plastic processes during wakefulness and sleep differ is unclear. We show that, in rat cortex and hippocampus, GluR1-containing AMPA receptor (AMPAR) levels are high during wakefulness and low during sleep, and changes in the phosphorylation states of AMPARs, CamKII and GSK3beta are consistent with synaptic potentiation during wakefulness and depression during sleep. Furthermore, slope and amplitude of cortical evoked responses increase after wakefulness, decrease after sleep and correlate with changes in slow-wave activity, a marker of sleep pressure. Changes in molecular and electrophysiological indicators of synaptic strength are largely independent of the time of day. Finally, cortical long-term potentiation can be easily induced after sleep, but not after wakefulness. Thus, wakefulness appears to be associated with net synaptic potentiation, whereas sleep may favor global synaptic depression, thereby preserving an overall balance of synaptic strength.

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Crossref · 10.1038/nn2035

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53 of 53 references verified0 citation errors · 0 not checkable

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  • Levels of postsynaptic glutamatergic AMPA receptors containing the glutamate receptor (GluR1)-1 subunit reliably indicate synaptic plasticity and were revealed to be high during wakefulness and distinctly lower (by 40%) during sleep.

    “Levels of postsynaptic glutamatergic AMPA receptors containing the glutamate receptor (GluR1)-1 subunit reliably indicate synaptic plasticity and were revealed to be high during wakefulness and distinctly lower (by 40%) during sleep (1264).”

    From About Sleep's Role in Memory (2013) · cites this paper as [1264]

  • In rats, slope and amplitude of the electrically evoked cortical potential increased during sustained wakefulness and decreased after sleep, and these changes correlated with SWA.

    “Indeed, in rats, slope and amplitude of the electrically evoked cortical potential as indicators of synaptic strength progressively increased during sustained wakefulness and decreased after sleep, and these changes were correlated with SWA (1264).”

    From About Sleep's Role in Memory (2013) · cites this paper as [1264]

  • Prolonged waking decreases the ability to induce further long-term potentiation in various models, which in turn should inhibit learning.

    “Prolonged waking decreases the ability to induce further LTP in various models, which in turn should inhibit learning (Vyazovskiy et al., 2008);”

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Authors
Vyazovskiy, V. V., Cirelli, C., Pfister-Genskow, M., Faraguna, U., & Tononi, G.
Affiliations
University of Wisconsin–Madison (US)
Corresponding author
  • Cirelli, Chiara
  • Tononi, Giulio
Venue
Nature Neuroscience
Published
2008-01-20
Volume
11
Issue
2
Pages
200-208
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2109919607
Cited by
837
References
53
Citations by year
2026: 27 · 2025: 48 · 2024: 49 · 2023: 28 · 2022: 44 · 2021: 48 · 2020: 40 · 2019: 60 · 2018: 37 · 2017: 57 · 2016: 36 · 2015: 43 · 2014: 45 · 2013: 62 · 2012: 53
FWCI
26.92
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • Surrey Research Insight Open Access (The University of Surrey) (submittedVersion)
  • Open Research (University of Surrey) (submittedVersion)
  • CINECA IRIS Institutial research information system (University of Pisa) (submittedVersion)
Funders
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
  • National Institutes of Health (DP1OD000579)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
synaptic potentiation, synaptic depression, sleep, wakefulness, AMPA receptors, GluR1, receptor phosphorylation, CaMKII, GSK3β, slow-wave activity, sleep pressure, cortical evoked potentials, long-term potentiation, memory consolidation, hippocampus, cortex, synaptic plasticity
MeSH terms
Glycogen Synthase Kinase 3 beta, Animals, Behavior, Animal, Cerebral Cortex, Electroencephalography, Electromyography, Gene Expression Regulation, Hippocampus, Male, Neuronal Plasticity, Phosphorylation, Rats, Inbred WKY, Serine, Sleep, Synapses, Temperature, Threonine, Wakefulness, Receptors, AMPA, Glycogen Synthase Kinase 3, Rats, Calcium-Calmodulin-Dependent Protein Kinase Type 2

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