Late bedtimes prevent circadian phase advances to morning bright light in adolescents

被引：6
作者：
Crowley, Stephanie J. [1 ]
Fournier, Chelsea L. [1 ]
Eastman, Charmane, I [1 ]
机构：
[1] Rush Univ, Med Ctr, Dept Behav Sci, Biol Rhythms Res Lab, 1645 West Jackson Blvd Suite 425, Chicago, IL 60612 USA
来源：
CHRONOBIOLOGY INTERNATIONAL | 2018年 / 35卷 / 12期
关键词：
Circadian rhythms; DLMO; adolescent; evening light; entrainment; bright light; phase shift; sleep; sleep deprivation; phase response curve to light; SLEEP; MELATONIN; RHYTHMS;
D O I：
10.1080/07420528.2018.1504784
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
We examined phase shifts to bright morning light when sleep was restricted by delaying bedtimes. Adolescents (n = 6) had 10-h sleep/dark opportunities for 6 days. For the next 2 days, half were put to bed 4.5 h later and then allowed to sleep for 5.5 h (evening room light + sleep restriction). The others continued the 10-h sleep opportunities (sleep satiation). Then, sleep schedules were gradually shifted earlier and participants received bright light (90 min, similar to 6000 lux) after waking for 3 days. As expected, sleep satiation participants advanced (similar to 2 h). Evening room light + sleep restriction participants did not shift or delayed by 2-4 h. Abbreviations: DLMO: dim light melatonin onset.
引用
收藏
页码：1748 / 1752
页数：5
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