Cited by 93Sleep and Wakefulness ResearchSleep and related disordersNeural dynamics and brain function

Structural brain correlates of human sleep oscillations

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Saletin, Jared M., van der Helm, Els, Walker, Matthew P.·2013·NeuroImage

Abstract

Sleep is strongly conserved within species, yet marked and perplexing inter-individual differences in sleep physiology are observed. Combining EEG sleep recordings and high-resolution structural brain imaging, here we demonstrate that the morphology of the human brain offers one explanatory factor of such inter-individual variability. Gray matter volume in interoceptive and exteroceptive cortices correlated with the expression of slower NREM sleep spindle frequencies, supporting their proposed role in sleep protection against conscious perception. Conversely, and consistent with an involvement in declarative memory processing, gray matter volume in bilateral hippocampus was associated with faster NREM sleep spindle frequencies. In contrast to spindles, gray matter volume in the homeostatic sleep-regulating center of the basal forebrain/hypothalamus, together with the medial prefrontal cortex, accounted for individual differences in NREM slow wave oscillations. Together, such findings indicate that the qualitative and quantitative expression of human sleep physiology is significantly related to anatomically specific differences in macroscopic brain structure.

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Crossref · 10.1016/j.neuroimage.2013.06.021

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  • Slow-wave sleep decreases about 60% across adolescence, possibly reflecting synaptic pruning and resulting efficiency of network connectivity.

    “Slow-wave sleep (SWS) decreases ~60% across adolescence (49), possibly reflecting synaptic pruning and resulting efficiency of network connectivity (50,51).”

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Authors
Saletin, J. M., van der Helm, E., & Walker, M. P.
Affiliations
University of California, Berkeley (US)
Corresponding author
Walker, Matthew P.
Venue
NeuroImage
Publisher
Elsevier BV
Published
2013-12
Volume
83
Pages
658-668
ISSN
1053-8119 (ISSN-L)
OpenAlex
W2082883998
Cited by
93
References
123
Citations by year
2026: 4 · 2025: 10 · 2024: 6 · 2023: 5 · 2022: 10 · 2021: 7 · 2020: 9 · 2019: 14 · 2018: 1 · 2017: 10 · 2016: 5 · 2015: 5 · 2014: 7
FWCI
3.11
Type
journal article
Language
en
Open access
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute on Aging (RO1AG031164)
  • National Institute of Mental Health (R01MH093537)
  • National Science Foundation
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
sleep oscillations, gray matter volume, slow oscillations, hippocampus, medial prefrontal cortex, hypothalamus, sleep homeostasis, declarative memory, conscious perception
MeSH terms
Adult, Brain, Brain Mapping, Electroencephalography, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Signal Processing, Computer-Assisted, Sleep, Polysomnography, Young Adult

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