SUBJECTIVE SLEEPINESS RATINGS - THE EFFECTS OF SLEEP-DEPRIVATION, CIRCADIAN RHYTHMICITY AND COGNITIVE PERFORMANCE
SUBJECTIVE SLEEPINESS RATINGS - THE EFFECTS OF SLEEP-DEPRIVATION, CIRCADIAN RHYTHMICITY AND COGNITIVE PERFORMANCE
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DOI：
10.1093/sleep/14.6.534
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发表时间：
1991-12-01
期刊：
影响因子：
5.6
通讯作者：
MIKULINCER, M
中科院分区：
文献类型：
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作者：
BABKOFF, H;CASPY, T;MIKULINCER, M
在一项72小时睡眠剥夺研究中，在认知测试之前和之后进行了计算机化的自我报告嗜睡量表。 认知测试组合每2小时进行一次，大约需要1-1.25小时。 研究人员使用了两种计算机化的主观嗜睡测量方法，一种是视觉模拟量表，另一种是希伯来语版本的斯坦福大学嗜睡量表。 结果表明，累积的睡眠损失，昼夜节律和超昼夜（2个周期/天）的因素是显着的主观估计嗜睡。 认知测试前和测试后主观嗜睡等级之间的差异程度取决于昼夜节律周期的阶段。 这些差异在大约0200-0600时最大，在1000时左右最小。 第二个低点出现在18时至20时。 通过对个体受试者的困倦等级曲线进行复解调分析，结果表明，在认知测试后，昼夜节律成分所占的方差显著增加。
Computerized self-report sleepiness scales were administered before and after cognitive testing in a 72-hour sleep deprivation study. The cognitive test battery was administered every 2 hours and took approximately 1-1.25 hours. Two computerized measures of subjective sleepiness were used, one a visual analog scale, the other a Hebrew version of the Stanford sleepiness scale. The results indicated that both accumulated sleep loss, circadian and ultradian (2 cycles/day) factors were significant in determining subjective estimates of sleepiness. The extent of the differences between subjective sleepiness ratings before cognitive testing and after testing was dependent upon the phase of the circadian cycle. These differences were greatest at approximately 0200-0600 hours and least around 1000 hours. A second low point occurred at 1800-2000 hours. Analysis by complex demodulation of the individual subjects' sleepiness rating curves indicated that the amount of variance accounted for by the circadian component increased significantly after cognitive testing.