Sleep efficiency for sleep-wake cycles of varied length.
Sleep efficiency for sleep-wake cycles of varied length.
复制标题
不同长度的睡眠-觉醒周期的睡眠效率。
DOI：
10.1111/j.1469-8986.1975.tb00063.x
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发表时间：
1975
期刊：
影响因子：
3.7
通讯作者：
H. Agnew
中科院分区：
文献类型：
--
作者：
W. Webb;H. Agnew
这项研究旨在测试受试者的睡眠效率，同时受试者仍保持非 24 小时睡眠和清醒状态。研究的方案为 9、12、18、30 和 36 小时的睡眠-觉醒周期。在每个方案中，睡眠与清醒的比率保持恒定为 1:2，即，每个预定睡眠小时有 2 小时的清醒时间。
每个实验方案下获得的睡眠量少于基线天数或 24 小时下获得的睡眠量。睡眠不足是由于入睡潜伏期的增加和入睡后觉醒度的增加造成的。导致睡眠效率较低的主要变量是先前觉醒的时间表差异、对睡眠开始时间位移的昼夜节律影响、睡眠终止效应以及分配的睡眠周期的发生频率。在短疗程中，入睡后的清醒时间与先前清醒度降低的程度密切相关。在较长的方案中，清醒时间的主要来源是睡眠时间的延长和睡眠终止效应。
This study was designed to test sleep efficiency while subjects were maintained on non-24-hr regimens of sleep and wakefulness. The regimens studied were 9, 12, 18, 30, and 36-hr sleep-wake cycles. In each regimen the ratio of.sleep to wakefulness was held constant in a 1:2 ratio, i.e. there were 2 hrs of wakefulness for each hour of scheduled sleep.
The amounts of sleep obtained under each experimental regimen were less than those obtained under the baseline days or 24 hrs. The sleep losses resulted both from an increase in the latency of sleep onset and increased wakefulness after sleep unset. The primary variables which resulted in less efficient sleep were schedule differences in prior wakefulness, circadian effects on the displacement of sleep onset times, a sleep termination effect, and the frequency of occurrence of the allotted sleep periods. In the short regimens the awake time after sleep onset was strongly associated with the degree to which prior wakefulness was reduced. In the longer regimens the principal sources of awake time were extended sleep length and a sleep termination effect.