Horne J A, Anderson N R, Wilkinson R T
Sleep. 1983;6(4):347-58. doi: 10.1093/sleep/6.4.347.
In an attempt to tease out the extent to which the performance decline during sleep deprivation might be due to a fall in the inherent capacity (d') of a subject, the parameters of the theory of signal detection were applied to auditory vigilance data obtained five times per 24 h during 60 h of continuous wakefulness. Eight subjects were exposed to both control and deprivation conditions in a balanced design. Oral temperature and self-assessed alert-drowsy reports were taken at three hourly intervals. The value of d' exhibited a significant stepwise decline during deprivation, falling sharply within the usual sleep period and levelling out during the daytime. Both temperature and self-assessment data exhibited clear circadian rhythms overlying the declines due to deprivation. The changes in d' were seen to be consistent with a brain "restitutive" role for sleep function.
为了弄清楚睡眠剥夺期间表现下降在多大程度上可能是由于受试者内在能力（d'）的下降，信号检测理论的参数被应用于在连续60小时清醒期间每24小时进行五次的听觉警觉数据。八名受试者以平衡设计接受了对照和剥夺条件。每隔三小时测量一次口腔温度和自我评估的警觉-困倦报告。在剥夺期间，d'值呈现出显著的逐步下降，在通常的睡眠时间内急剧下降，在白天趋于平稳。温度和自我评估数据在因剥夺导致的下降之上都呈现出明显的昼夜节律。d'的变化被认为与睡眠功能的大脑“恢复性”作用一致。
