Cited by 280Sleep and Wakefulness ResearchNeural dynamics and brain functionSleep and related disorders

Longitudinal trajectories of non-rapid eye movement delta and theta EEG as indicators of adolescent brain maturation

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Campbell, Ian G., Feinberg, Irwin·2009·Proceedings of the National Academy of Sciences

Abstract

It is now recognized that extensive maturational changes take place in the human brain during adolescence, and that the trajectories of these changes are best studied longitudinally. We report the first longitudinal study of the adolescent decline in non-rapid eye movement (NREM) delta (1–4 Hz) and theta (4–8 Hz) EEG. Delta and theta are the homeostatic frequencies of human sleep. We recorded sleep EEG in 9- and 12-year-old cohorts twice yearly over a 5-year period. Delta power density (PD) was unchanged between age 9 and 11 years and then fell precipitously, decreasing by 66% between age 11 and 16.5 years ( P < .000001). The decline in theta PD began significantly earlier than that in delta PD and also was very steep (by 60%) between age 11 and 16.5 years ( P < .000001). These data suggest that age 11–16.5 years is a critically important maturational period for the brain processes that underlie homeostatic NREM EEG, a finding not suggested in previous cross-sectional data. We hypothesize that these EEG changes reflect synaptic pruning. Comparing our data with published longitudinal declines in MRI-estimated cortical thickness suggests the theta age curve parallels the earlier maturational thinning in 3-layer cortex, whereas the delta curve tracks the later changes in 5-layer cortex. This comparison also reveals that adolescent declines in NREM delta and theta are substantially larger than decreases in cortical thickness (>60% vs. <20%). The magnitude, interindividual difference, and tight link to age of these EEG changes indicate that they provide excellent noninvasive tools for investigating neurobehavioral correlates of adolescent brain maturation.

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Crossref · 10.1073/pnas.0812947106

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  • The EEG during SWS shows developmental changes: amplitude and slope of slow waves and SWA increase until puberty at 10-12 years to levels higher than adults, then decrease.

    “The EEG during SWS also shows typical changes during development: the amplitude and slope of slow waves as well as SWA (i.e., spectral power in the 0.5-4 Hz band, including both Ͻ1 Hz slow oscillation and 1-4 Hz delta activity) increases until the beginning of puberty at the age of 10 -12 years to levels distinctly higher than in adults, and thereafter starts to decrease (169, 604, 680).”

    From About Sleep's Role in Memory (2013) · cites this paper as [169]

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2 of the 29 references couldn’t be matched to a known paper.

Research works printed but not linked: 2

  1. I Feinberg, et al., Maturational changes in amplitude, incidence and cyclic pattern of the 0 to 3 Hz (Delta) electroencephalogram of human sleep. Brain Dysfunction 3, 183–192 (1990).
  2. J Twisk Applied Longitudinal Data Analysis for Epidemiology (Cambridge Univ Press, Cambridge, UK, 2003).

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Authors
Campbell, I. G., & Feinberg, I.
Affiliations
University of California, Davis (US)
Venue
Proceedings of the National Academy of Sciences
Published
2009-03-31
Volume
106
Issue
13
Pages
5177-5180
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2073925770
Cited by
280
References
29
Citations by year
2026: 8 · 2025: 16 · 2024: 18 · 2023: 20 · 2022: 16 · 2021: 19 · 2020: 19 · 2019: 18 · 2018: 9 · 2017: 17 · 2016: 17 · 2015: 17 · 2014: 16 · 2013: 19 · 2012: 20
FWCI
8.23
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Mental Health (R01MH062521, 1R01 MH62521)
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 related disorders
Keywords
adolescent brain development, sleep homeostasis, synaptic pruning, cortical thickness
MeSH terms
Adolescent, Aging, Brain, Cerebral Cortex, Child, Electroencephalography, Eye Movements, Humans, Longitudinal Studies, Sleep

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