Abstract:
:Five male subjects were exposed to a single 2-h period of bright (2500 lux) or dim (<100 lux) light prior to sleep on two consecutive nights. The two conditions were repeated the following week in opposite order. Bright light significantly suppressed salivary melatonin and raised rectal temperature 0.3 degrees C (which remained elevated during the first 1.5 h of sleep), without affecting tympanic temperature. Bright light also increased REM latency, NREM period length, EEG spectral power in low frequency, 0.75-8 Hz and sigma, 12-14 Hz (sleep spindle) bandwidths during the first hour of sleep, and power of all frequency bands (0.5-32 Hz) within the first NREMP. Potentiation of EEG slow wave activity (0.5-4.0 Hz) by bright light persisted through the end of the second NREMP. The enhanced low-frequency power and delayed REM sleep after bright light exposure could represent a circadian phase-shift and/or the effect of an elevated rectal temperature, possibly mediated by the suppression of melatonin.
journal_name
J Sleep Resjournal_title
Journal of sleep researchauthors
Bunnell DE,Treiber SP,Phillips NH,Berger RJdoi
10.1111/j.1365-2869.1992.tb00003.xsubject
Has Abstractpub_date
1992-03-01 00:00:00pages
17-23issue
1eissn
0962-1105issn
1365-2869pii
jsr001001017journal_volume
1pub_type
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journal_title:Journal of sleep research
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pub_type: 杂志文章
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更新日期:1993-09-01 00:00:00
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journal_title:Journal of sleep research
pub_type: 杂志文章
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journal_title:Journal of sleep research
pub_type: 杂志文章
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更新日期:1992-09-01 00:00:00
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journal_title:Journal of sleep research
pub_type: 杂志文章
doi:10.1111/j.1365-2869.1992.tb00015.x
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journal_title:Journal of sleep research
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journal_title:Journal of sleep research
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更新日期:2012-12-01 00:00:00
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journal_title:Journal of sleep research
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更新日期:2020-03-16 00:00:00
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journal_title:Journal of sleep research
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journal_title:Journal of sleep research
pub_type: 杂志文章
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journal_title:Journal of sleep research
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更新日期:2012-10-01 00:00:00
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journal_title:Journal of sleep research
pub_type: 杂志文章,随机对照试验
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更新日期:2010-12-01 00:00:00
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更新日期:2002-12-01 00:00:00
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journal_title:Journal of sleep research
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journal_title:Journal of sleep research
pub_type: 杂志文章
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更新日期:1995-06-01 00:00:00
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journal_title:Journal of sleep research
pub_type: 杂志文章
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更新日期:2021-02-01 00:00:00