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Cited by 50Circadian rhythm and melatoninSleep and Work-Related FatigueSleep and Wakefulness Research

The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.

Sleep propensity and sleep architecture after bright light exposure at three different times of day

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CARRIER, JULIE, DUMONT, MARIE·1995·Journal of Sleep Research
DOI 10.1111/j.1365-2869.1995.tb00171.x
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Abstract

The aim of this work was to study the effects of bright light-induced circadian phase shifts on sleep propensity and sleep architecture while the timing of the sleep/wake cycle is kept constant. Twenty-three normal subjects underwent an 11-day study including: (i) baseline sleep and vigilance evaluation; (ii) baseline evaluation of the circadian temperature rhythm with a 40-h constant routine; (iii) five hours of bright light exposure on each of three days; (iv) post-treatment sleep and vigilance evaluation; (v) post-treatment circadian rhythm evaluation with a second 40-h constant routine. Subjects were divided into three groups: eight subjects were exposed to bright light in the morning ('Morning group'), eight subjects were exposed in the evening ('Evening group'), and seven subjects were exposed in the afternoon ('Afternoon group'). After light exposure, the Morning group showed an advance of 1.23 h in the phase of the temperature rhythm, the Evening group showed a delay of 1.62 h, and the Afternoon group showed a non-significant advance of 0.5 h. In support of expectations, early-night sleep propensity was decreased by evening bright light, was increased in almost all subjects exposed to morning bright light, and was not changed by afternoon bright light exposure. The phase shift created by bright light exposure did not seem to be large enough to have a systematic effect on sleep consolidation or on REM sleep parameters in any of the three groups, suggesting that these variables are less sensitive to alterations in phase of the circadian oscillator than early-night sleep propensity.

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Research works printed but not linked: 5

  1. Czeisler C. A., 1985, A clinical method to assess the endogenous circadian phase (ECP) of the deep circadian oscillator in man., Sleep Research, 14, 295
  2. Gallin P. F., 1990, The Columbia eye check‐up for users of light treatment., Light Treatment and Biological Rhythms, 2, 7
  3. Hume K. I., 1977, Rhythms of REM and slow‐wave sleep in subjects living on abnormal time schedules., Waking and Sleeping, 1, 291
  4. Rogacz S., 1988, Endogenous circadian temperature amplitude is reduced and phase is delayed at the luteal phase of the menstrual cycle in ovulating women., Abstr. Soc. Res. Biol. Rhythms, 1, 27
  5. Weitzman E. D., 1981, Biological Rhythms, Sleep and Shiftwork, 93

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Metadata

Authors
CARRIER, J., & DUMONT, M.
Affiliations
Hôpital du Sacré-Cœur de Montréal (CA)
Corresponding author
DUMONT, MARIE
ORCID
Venue
Journal of Sleep Research
Publisher
Wiley
Published
1995-12
Volume
4
Issue
4
Pages
202-211
ISSN
  • 0962-1105 (ISSN-L)
  • 1365-2869
DOI
10.1111/j.1365-2869.1995.tb00171.x
OpenAlex
W1967019353
Cited by
50
References
36
Citations by year
2025: 2 · 2023: 3 · 2022: 7 · 2021: 5 · 2019: 1 · 2018: 5 · 2017: 2 · 2016: 1 · 2015: 3 · 2014: 3 · 2013: 3
FWCI
0.75
Type
journal article
Language
en
Open access
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor, 4799 d)
Locations
  • Journal of Sleep Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
Keywords
bright light exposure, circadian phase shift, sleep propensity, sleep architecture, circadian rhythm, circadian temperature rhythm, constant routine, REM sleep, sleep consolidation

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