Alihanka J, Vaahtoranta K
Electroencephalogr Clin Neurophysiol. 1979 Jun;46(6):731-4. doi: 10.1016/0013-4694(79)90113-5.
The principle of 'a static charge sensitive bed' method for recording body movements during sleep is described. We made records during 30 nights and the measured total number of movements per night (80-200) is in agreement with the findings of studies based on a combination of direct observation, EMG and videotape. The method is simple, inexpensive and very sensitive to all kinds of movement.
本文描述了用于记录睡眠期间身体运动的“静电荷敏感床”方法的原理。我们进行了30个晚上的记录，每晚测量到的运动总数（80 - 200次）与基于直接观察、肌电图和录像带相结合的研究结果一致。该方法简单、成本低，并且对各种运动都非常敏感。
