Laboratoire de Psychologie des Cognitions, Université de Strasbourg, France.
Sleep Med. 2012 Jan;13(1):29-35. doi: 10.1016/j.sleep.2011.06.017. Epub 2011 Dec 15.
Respiratory events during sleep usually lead to micro arousals resulting in consecutive daytime sleepiness even in healthy snorers. The present study investigated the evolution of subjective and objective daytime sleepiness and reaction time in healthy snorers submitted to acute and chronic sleep deprivation.
Objective sleepiness was measured by the MSLT, subjective sleepiness by the Karolinska Sleepiness Scale (KSS), and reaction time (RT) by the Psychomotor Vigilance Test. Mean sleep latencies, KSS scores and performance were analyzed through repeated measures ANOVAs with one between-factor (snorers and non-snorers) and two within-factors (sleep deprivation [baseline, acute, and chronic sleep deprivation] and time-of-day).
The findings reveal that sleep deprivation does not enhance snoring but that, during baseline, objective daytime sleepiness is higher in snorers than in non-snorers (shorter sleep latencies) with no difference in subjective assessments. The effects of acute and chronic sleep deprivation on sleep are similar in both groups, but, after acute sleep deprivation, RT and attentional lapses (RT >500 ms) are higher in snorers. Chronic sleep deprivation produces similar results in both groups.
These results suggest that respiratory efforts may be involved in the increased vulnerability to sleep deprivation of healthy snorers when compared to non-snorers.
睡眠期间的呼吸事件通常会导致微觉醒，即使在健康的打鼾者中也会导致连续的白天嗜睡。本研究调查了健康打鼾者在急性和慢性睡眠剥夺下主观和客观白天嗜睡和反应时间的演变。
通过多睡眠潜伏期试验（MSLT）测量客观嗜睡，通过 Karolinska 嗜睡量表（KSS）测量主观嗜睡，通过精神运动警觉性测试测量反应时间（RT）。通过重复测量方差分析，对平均睡眠潜伏期、KSS 评分和表现进行分析，其中一个组间因素（打鼾者和非打鼾者）和两个组内因素（睡眠剥夺[基线、急性和慢性睡眠剥夺]和一天中的时间）。
研究结果表明，睡眠剥夺不会增强打鼾，但在基线时，客观的白天嗜睡在打鼾者中比在非打鼾者中更高（睡眠时间更短），主观评估没有差异。急性和慢性睡眠剥夺对睡眠的影响在两组中相似，但在急性睡眠剥夺后，打鼾者的 RT 和注意力失误（RT>500ms）更高。慢性睡眠剥夺在两组中产生相似的结果。
这些结果表明，与非打鼾者相比，呼吸努力可能与健康打鼾者对睡眠剥夺的易感性增加有关。
