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Cited by 52Sleep and Wakefulness ResearchDown syndrome and intellectual disability researchSleep and related disorders

Sleep patterns in mental retardation: Down's syndrome

Clausen, J, Sersen, E.A, Lidsky, A·1977·Electroencephalography and Clinical Neurophysiology
DOI 10.1016/0013-4694(77)90126-2
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Abstract

EEG and eye movements during two consecutive nights were recorded in 21 "normal" and 21 Down's subjects of both sexes in the 14-24-year age range. Records of most Down's subjects were characterized by longer total sleep time, lack of waking alpha, frequent awakening and movement epochs and fewer spindle bursts. Significantly longer "awake" and stage 4 percentages, but less stage 2, were found in the Down's group. They also had longer REM latency, and lower eye movement density based on number of eye movements. Density based on integrated eye activity correlated positively with IQ in the Down's subjects. Spectrum analysis for EEG frequencies from 1 to 20 c/sec showed significantly greater power in the Down's group below 9 and above 12 c/sec, but no difference in the alpha range. The greater power at low frequencies was more pronounced in "awake", stage 1 and REM.

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Crossref · 10.1016/0013-4694(77)90126-2

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21 of 21 references verified0 citation errors · 0 not checkable

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  • In humans, mentally retarded children generally exhibit less REM sleep, longer REM sleep latencies, and less REM density relative to normal controls.

    “In humans, mentally retarded children generally exhibit less REM sleep, longer REM sleep latencies, and less REM density relative to normal controls (182-184, 211, 368, 369, 425, 922-924, 1045).”

    From About Sleep's Role in Memory (2013) · cites this paper as [211]

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Authors
Clausen, J., Sersen, E. A., & Lidsky, A.
Venue
Electroencephalography and Clinical Neurophysiology
Publisher
Elsevier BV
Published
1977-08
Volume
43
Issue
2
Pages
183-191
ISSN
0013-4694 (ISSN-L)
DOI
10.1016/0013-4694(77)90126-2
OpenAlex
W2032395146
Cited by
52
References
22
Citations by year
2025: 1 · 2024: 2 · 2023: 1 · 2022: 1 · 2019: 2 · 2017: 1 · 2016: 3 · 2015: 1 · 2014: 2 · 2013: 1
FWCI
0.52
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • Electroencephalography and Clinical Neurophysiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Down syndrome and intellectual disability research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
Keywords
Down syndrome, intellectual disability, sleep patterns, sleep architecture, REM latency, eye movements, EEG spectral power, sleep spindles, sleep stages, IQ
MeSH terms
Adolescent, Adult, Down Syndrome, Electroencephalography, Electrooculography, Eye Movements, Female, Humans, Male, Sleep Stages

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