Hori A
Jpn J Psychiatry Neurol. 1986 Mar;40(1):35-46. doi: 10.1111/j.1440-1819.1986.tb01610.x.
Polysomnograms were recorded for three consecutive nights on 14 male students (mean age, 16), comprising 4 identical and 3 fraternal twin pairs. The number of body movements and the measures related to the REM cycle, which correlated among the identical twins without reference to the physical parameters, were considered to be determined by a genetic trait. The sleep spindle density was in almost complete concordance between the identical twins and was associated with some physical parameters, which suggests that sleep spindles rather reflect the individual development. %S3, %SREM and the number of SREM showed a relationship to the physical parameters, without heritability. Twitch movements during REM sleep correlated not only between the identical twins but also between the fraternal twins.
对14名男学生（平均年龄16岁）连续三晚进行多导睡眠图记录，其中包括4对同卵双胞胎和3对异卵双胞胎。身体运动的次数以及与快速眼动周期相关的指标，在同卵双胞胎之间相互关联，且与身体参数无关，被认为是由遗传特征决定的。同卵双胞胎之间的睡眠纺锤波密度几乎完全一致，并且与一些身体参数相关，这表明睡眠纺锤波更能反映个体发育情况。%S3、%SREM和SREM的次数与身体参数有关，但不具有遗传性。快速眼动睡眠期间的抽搐运动不仅在同卵双胞胎之间相关，在异卵双胞胎之间也相关。
