Benoit O, Foret J, Merle B, Reinberg A
Chronobiologia. 1981 Oct-Dec;8(4):341-50.
Seven long sleepers (LS) (sleep greater than or equal to 9 h) and seven short sleepers (SS) (sleep less than or equal to 7 h), aged 20 to 23 years, were selected among medical students. They measured their axillary temperature (T), heart rate (HR) and self-estimated their vigilance (V) and mood (M) every 4 h from awakening to bed time during a ten-day control span and during the two sleep deprived nights. Polygraphic sleep recordings were performed on 3 control days and recovery from 24 h (day sleep) or 36 h (night sleep) sleep deprivations. For the 4 variables (T, HR, V and M), group circadian patterns were analyzed by means of the cosinor method for the control span and after both types of sleep deprivation. The acrophases of the 4 variables clustered more in LS than in SS. The acrophases of V and M were found to be more closely related to the sleep/wake rhythm than those of T and HR. Sleep deprivation resulted in a large change of the circadian rhythms in LS but had little effect in SS as indicated by the non detection of most acrophases in LS and the persistence of such acrophases in SS. This difference might be explained by the large interindividual variability of changes induced by the sleep deprivation in LS. Moreover, day sleep recovery was more disturbed in LS than in SS.
从医科学生中挑选出7名长睡眠者（LS，睡眠时间大于或等于9小时）和7名短睡眠者（SS，睡眠时间小于或等于7小时），年龄在20至23岁之间。在为期10天的对照期以及两个睡眠剥夺夜晚期间，他们从醒来至就寝每隔4小时测量一次腋窝温度（T）、心率（HR），并自我评估警觉性（V）和情绪（M）。在3个对照日进行多导睡眠记录，并在24小时（白天睡眠）或36小时（夜间睡眠）睡眠剥夺后进行恢复记录。对于4个变量（T、HR、V和M），采用余弦法分析对照期以及两种类型睡眠剥夺后的组昼夜节律模式。4个变量的峰值相位在长睡眠者中比在短睡眠者中聚集得更多。发现警觉性和情绪的峰值相位比体温和心率的峰值相位与睡眠/觉醒节律的关系更密切。睡眠剥夺导致长睡眠者的昼夜节律发生很大变化，但对短睡眠者影响很小，这表现为长睡眠者中大多数峰值相位未被检测到，而短睡眠者中这些峰值相位持续存在。这种差异可能是由于睡眠剥夺在长睡眠者中引起的个体间变化差异很大。此外，长睡眠者的白天睡眠恢复比短睡眠者更受干扰。
