Cited by 865Sleep and Wakefulness ResearchNeural dynamics and brain functionSleep and Work-Related Fatigue

The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.

Local sleep in awake rats

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Abstract

In an awake state, neurons in the cerebral cortex fire irregularly and electroencephalogram (EEG) recordings display low-amplitude, high-frequency fluctuations. During sleep, neurons oscillate between 'on' periods, when they fire as in an awake brain, and 'off' periods, when they stop firing altogether and the EEG displays high-amplitude slow waves. However, what happens to neuronal firing after a long period of being awake is not known. Here we show that in freely behaving rats after a long period in an awake state, cortical neurons can go briefly 'offline' as in sleep, accompanied by slow waves in the local EEG. Neurons often go offline in one cortical area but not in another, and during these periods of 'local sleep', the incidence of which increases with the duration of the awake state, rats are active and display an 'awake' EEG. However, they are progressively impaired in a sugar pellet reaching task. Thus, although both the EEG and behaviour indicate wakefulness, local populations of neurons in the cortex may be falling asleep, with negative consequences for performance.

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Metadata

Authors
Vyazovskiy, V. V., Olcese, U., Hanlon, E. C., Nir, Y., Cirelli, C., & Tononi, G.
Affiliations
University of Wisconsin–Madison (US)
Corresponding author
Tononi, Giulio
Venue
Nature
Published
2011-04
Volume
472
Issue
7344
Pages
443-447
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2039029351
Cited by
865
References
42
Citations by year
2026: 55 · 2025: 72 · 2024: 58 · 2023: 54 · 2022: 64 · 2021: 65 · 2020: 73 · 2019: 73 · 2018: 53 · 2017: 62 · 2016: 50 · 2015: 36 · 2014: 45 · 2013: 46 · 2012: 39
FWCI
24.07
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Surrey Research Insight Open Access (The University of Surrey) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Open Research (University of Surrey) (submittedVersion)
Funders
  • National Institutes of Health (5p20mh077967-04, DP1OD000579)
  • National Institute of Mental Health (P20MH-077967)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
Keywords
local sleep, cortical neuronal activity, slow waves, EEG, wakefulness, prolonged wakefulness, sleep-like state, cognitive impairment, rats, sleep-wake transition
MeSH terms
Action Potentials, Animals, Behavior, Animal, Cerebral Cortex, Electroencephalography, Male, Models, Neurological, Rats, Inbred WKY, Reward, Sleep, Sleep Deprivation, Wakefulness, Rats

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