Fukuda K, Miyasita A, Inugami M, Ishihara K
Sleep. 1987 Jun;10(3):279-86. doi: 10.1093/sleep/10.3.279.
In Japan, a set of experiences called kanashibari is considered identical with isolated sleep paralysis. We investigated this phenomenon by means of a questionnaire administered to 635 college students (390 men and 245 women). Of all subjects, about 40% had experienced at least one episode of kanashibari [subjects of K(+)]. Therefore, isolated sleep paralysis is apparently a more common phenomenon than is usually appreciated. About half of the subjects of K(+) reported that they had been under "physical or psychological stress" or in a "disturbed sleep and wakefulness cycle" immediately before the episode. Many subjects of K(+) experienced the first episode in adolescence. In the distribution of age of first attack, the peak occurred at an earlier age in women subjects than in men subjects. These findings suggest that two factors influence the occurrence of the phenomenon. One is exogenous physical or psychological load and the other is endogenous biological development.
在日本，一组被称为“鬼压床”的体验被认为与孤立性睡眠麻痹相同。我们通过对635名大学生（390名男性和245名女性）进行问卷调查来研究这一现象。在所有受试者中，约40%至少经历过一次“鬼压床”发作（“鬼压床”阳性受试者）。因此，孤立性睡眠麻痹显然是一种比通常所认为的更为常见的现象。约一半的“鬼压床”阳性受试者报告称，在发作前他们处于“身体或心理压力”之下或处于“睡眠和觉醒周期紊乱”状态。许多“鬼压床”阳性受试者在青春期首次发作。在首次发作年龄分布方面，女性受试者的峰值出现年龄比男性受试者更早。这些发现表明有两个因素影响该现象的发生。一个是外源性的身体或心理负荷，另一个是内源性的生物发育。
