Fast track:Unilateral vibrissae stimulation during waking induces interhemispheric EEG asymmetry during subsequent sleep in the rat
Abstract
To test the theory that sleep is a regional, use‐dependent process, rats were subjected to unilateral sensory stimulation during waking. This was achieved by cutting the whiskers on one side, in order to reduce the sensory input to the contralateral cortex. The animals were kept awake for 6 h in an enriched environment to activate the cortex contralateral to the intact side. Whiskers are known to be represented in the barrel field of the contralateral somatosensory cortex and their stimulation during exploratory behavior results in a specific activation of the projection area. In the 6 h recovery period following sleep deprivation, spectral power of the nonrapid eye‐movement (NREM) sleep EEG in the 0.75–6.0 Hz range exhibited an interhemispheric shift towards the cortex that was contralateral to the intact whiskers. The results support the theory that sleep has a regional, use‐dependent facet.
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In animals, the encoding and learning of information during waking produced consistent increases in SWA in respective cortical networks during subsequent SWS.
“In animals, the encoding and learning of information during waking produced consistent increases in SWA in respective cortical networks during subsequent SWS (624, 1263).”
From About Sleep's Role in Memory (2013) · cites this paper as [1263]
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References 25 · Cited by 203
- Authors
- Vyazovskiy, V., Borbély, A. A., & Tobler, I.
- Affiliations
- University of Zurich (CH)
- Corresponding author
- Tobler, I.
- Venue
- Journal of Sleep Research
- Publisher
- Wiley
- Published
- 2000-12-18
- Volume
- 9
- Issue
- 4
- Pages
- 367-371
- ISSN
- 0962-1105 (ISSN-L)
- 1365-2869
- OpenAlex
- W2052910153
- Cited by
- 203
- References
- 25
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 6 · 2023: 3 · 2022: 4 · 2021: 5 · 2020: 3 · 2019: 9 · 2018: 6 · 2017: 6 · 2016: 11 · 2015: 4 · 2014: 7 · 2013: 11 · 2012: 14
- FWCI
- 4.33
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Sleep Research (publishedVersion)
- PubMed (publishedVersion)
- Zurich Open Repository and Archive (University of Zurich) (submittedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
- Keywords
- whisker stimulation, whiskers, sleep deprivation, NREM sleep, somatosensory cortex, barrel cortex, environmental enrichment, cortical activation, rats
- MeSH terms
- Animals, Arousal, Brain, Electroencephalography, Electromyography, Humans, Functional Laterality, Male, Sleep, REM, Wakefulness, Rats, Sprague-Dawley, Rats
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