Kripke D F, Mullaney D J, Messin S, Wyborney V G
Electroencephalogr Clin Neurophysiol. 1978 May;44(5):674-6. doi: 10.1016/0013-4694(78)90133-5.
With a piezo-electric activity transducer, wrist activity recordings were made simultaneously with EEG, EOG and EMG recordings. Wrist activity alone was used to estimate Total Sleep Time and blind independent scoring of sleep and wakefulness by EEG-EOG-EMG was done. Correlations between the two methods were termined for minutes of Sleep (r = 0.98), Total Sleep Period (r = 0.95) and minutes of Wake Time Within Sleep (r = 0.85). Continuous wrist activity recordings may thus provide inexpensive but very accurate estimates of Sleep Time.
使用压电活动传感器，同时进行腕部活动记录以及脑电图（EEG）、眼电图（EOG）和肌电图（EMG）记录。仅使用腕部活动来估计总睡眠时间，并通过EEG-EOG-EMG对睡眠和清醒状态进行盲法独立评分。确定了两种方法在睡眠分钟数（r = 0.98）、总睡眠期（r = 0.95）和睡眠中清醒时间分钟数（r = 0.85）方面的相关性。因此，连续的腕部活动记录可以提供低成本但非常准确的睡眠时间估计。
