PASSIVE BODY HEATING AND SLEEP - INFLUENCE OF PROXIMITY TO SLEEP
PASSIVE BODY HEATING AND SLEEP - INFLUENCE OF PROXIMITY TO SLEEP
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DOI：
10.1093/sleep/11.2.210
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发表时间：
1988-04-01
期刊：
影响因子：
5.6
通讯作者：
WILLS, M
中科院分区：
文献类型：
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作者：
BUNNELL, DE;AGNEW, JA;WILLS, M
摘要先前的研究发现，在身体加热后，三角洲睡眠会增强。这项研究评估了身体温度作为接近睡眠的功能的影响。比较了L体温(41°C水浴)后，在一天中的四个时间段：早晨(MO)、下午(AF)、傍晚(EE)和深夜(LE)的脑电睡眠模式，并在睡前结束。三角洲过滤器/积分器系统提供了三角洲含量的客观测量。与基线夜间相比，整夜三角洲睡眠仅因两次夜间供暖而增加，尤其是LE供暖。在LEE之后，增量的增加主要发生在第一个睡眠周期，而EE加热引起的增量增加分布在随后的睡眠周期(周期2-4)。对慢波睡眠(SWS)手动分级指数的影响仅限于LE加热后第一个睡眠周期阶段4的增加。睡前加温还会显著缩短第一次快速眼动睡眠的持续时间。通过加热，尤其是EE加热，睡眠开始时间减少。结果表明，体温引起的暂时性改变影响睡眠倾向和睡眠脑电中的Delta活动的数量和时间分布。
SummaryPrevious studies have found enhanced delta sleep following body heating. This study assessed the influence of body heating as a function of its proximity to sleep. Electroencephalogram (EEG) sleep patterns were compared following body heating (l h immersion in water at 41°C) at each of four times of day: morning (MO), afternoon (AF), early evening (EE), and late evening (LE), ending just prior to sleep. A delta filter/integrator system provided objective measures of delta content. Relative to baseline nights, wholenight delta sleep was increased by the two evening heating sessions only, particularly LE heating. Following LE, the increased delta occurred primarily in the first sleep cycle, whereas EE heating elicited increased delta distributed across the later sleep cycles (cycles 2–4). Effects on manually staged indices of slow wave sleep (SWS) were confined to increases in Stage 4 in the first sleep cycle following LE heating. Heating just prior to sleep also resulted in a substantial reduction in the duration of the first rapid eye movement sleep period. Sleep onset time was reduced by heating, particularly EE heating. The results indicate that body heating induces temporary changes that affect sleep propensity and both the quantity and temporal distribution of delta activity in the sleep EEG.