Herscovitch J, Broughton R
Sleep. 1981;4(1):83-91. doi: 10.1093/sleep/4.1.83.
The sensitivity of the Stanford Sleepiness Scale (SSS) to short-term cumulative partial sleep deprivation (PSD) and subsequent recovery oversleeping was examined. A repeated-measures design included 7 paid healthy undergraduate volunteers, who were normal sleepers (mean sleep time 7.6 hr), and consisted of the following schedule: (a) pre-baseline; (b)sleep reduction of 40% of 1 night (mean, 4.6 hr) for 5 nights; (c) recovery oversleeping for night 1 (mean, 10.6 Hr) and night 2 (mean, 9.1 hr); (d) post-baseline. Daytime performance testing utilized a 1 hr auditory vigilance task and four short-duration (10 min) tests, two of which have been shown sensitive to total and partial sleep loss effects. Subjects completed SSS forms every min while awake and 1-9 scales of mood and energy upon awakening. Subjective measures were analyzed across conditions for mean all-day and task-related SSS values and mood and energy ratings. A correlational analysis investigated individual correspondences between ratings and performance. Results indicate that SSS is sensitive to deficits in alertness following PSD. However, it generally does not predict individual performance efficiency and therefore cannot act as a substitute for performance measures in studies involving chronic sleep loss.
研究了斯坦福嗜睡量表（SSS）对短期累积部分睡眠剥夺（PSD）及随后恢复性过度睡眠的敏感性。采用重复测量设计，纳入了7名有偿参与的健康本科志愿者，他们均为正常睡眠者（平均睡眠时间7.6小时），实验安排如下：（a）基线前；（b）连续5晚将一晚的睡眠时间减少40%（平均4.6小时）；（c）第1晚（平均10.6小时）和第2晚（平均9.1小时）进行恢复性过度睡眠；（d）基线后。白天的表现测试采用1小时的听觉警觉任务和四项短时长（10分钟）测试，其中两项已被证明对全部和部分睡眠缺失效应敏感。受试者在清醒时每分钟填写SSS表格，并在醒来时对情绪和精力进行1 - 9级评分。对各条件下的主观测量结果进行分析，得出全天及与任务相关的SSS平均分值以及情绪和精力评分。相关性分析调查了评分与表现之间的个体对应关系。结果表明，SSS对PSD后的警觉性缺陷敏感。然而，它通常无法预测个体的表现效率，因此在涉及慢性睡眠缺失的研究中不能替代表现测量。
