Can small shifts in circadian phase affect performance?
Can small shifts in circadian phase affect performance?
复制标题
昼夜节律的小变化会影响性能吗？
DOI：
10.1016/j.apergo.2012.05.007
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发表时间：
2013-01
影响因子：
3.2
通讯作者：
Smith, Mark R.
中科院分区：
文献类型：
--
作者：
Burgess, Helen J.;Legasto, Carlo S.;Fogg, Louis F.;Smith, Mark R.
Small shifts in circadian timing occur frequently as a result of daylight saving time or later weekend sleep. These subtle shifts in circadian phase have been shown to influence subjective sleepiness, but it remains unclear if they can significantly affect performance. In a retrospective analysis we examined performance on the Psychomotor Vigilance Test before bedtime and after wake time in 11 healthy adults on fixed sleep schedules based on their habitual sleep times. The dim light melatonin onset, a marker of circadian timing, was measured on two occasions. An average 1.1 hour shift away from a proposed optimal circadian phase angle (6 hours between melatonin onset and midpoint of sleep) significantly slowed mean, median and fastest 10% reaction times before bedtime and after wake time (p<0.05). These results add to previous reports that suggest that humans may be sensitive to commonly occurring small shifts in circadian timing.
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影响因子：
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通讯作者：
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