Grubar J C
Rev Electroencephalogr Neurophysiol Clin. 1983 Nov;13(2):107-13. doi: 10.1016/s0370-4475(83)80068-9.
The nocturnal sleep of 54 young, organic and functional, institutionalized mentally deficients was recorded and analyzed according to Rechtschaffen and Kales (1968) and compared to that of 17 normal subjects of the same age. The paradoxical sleep (PS) rate of mental deficients is significantly lower than that of normals, as is the number of PS phases. On the other hand, the rate of intermediary sleep (IS) is increased, as is the latency of the first PS phases. The analysis of intervals between consecutive horizontal eye movements showed that intervals less than 1 sec (I less than 1 sec) are shorter in mental deficients. The ratio between high frequency (I less than 1 sec) and low frequency intervals (I greater than or equal to 2 sec) increases with age in normals and remains at a constant low level in mental deficients.
根据 Rechtschaffen 和 Kales（1968 年）的方法，记录并分析了 54 名年轻的、器质性和功能性的、机构收容的智力缺陷者的夜间睡眠情况，并与 17 名同龄正常受试者的睡眠情况进行了比较。智力缺陷者的异相睡眠（PS）率显著低于正常人，PS 阶段的数量也是如此。另一方面，中间睡眠（IS）率增加，第一个 PS 阶段的潜伏期也增加。对连续水平眼动之间的间隔进行分析表明，智力缺陷者中小于 1 秒的间隔（I 小于 1 秒）更短。正常人中高频（I 小于 1 秒）与低频间隔（I 大于或等于 2 秒）的比例随年龄增加，而智力缺陷者则保持在恒定的低水平。
