Egawa I, Yoshino K, Hishikawa Y
Folia Psychiatr Neurol Jpn. 1983;37(1):57-65. doi: 10.1111/j.1440-1819.1983.tb00303.x.
The characteristics of positive occipital sharp transients (POSTs) in the human sleep EEG were studied, and their characteristics were compared with those of lambda waves appearing in the occipital EEG during the waking state. The following findings were obtained: 1) POSTs were observed in 57% of 189 subjects examined during sleep. The incidence of the subjects showing POSTs was highest in the group of subjects aged 21-30 years. 2) The incidence of the subjects showing POSTs tended to be high among the subjects with a high alpha wave index. 3) The wave form and topography of POSTs had striking similarities to those of lambda waves. 4) The frequency of POSTs was highest during the initial 30 minutes' period of NREM sleep after the sleep onset in both nocturnal and diurnal sleep. 5) The frequency and amplitude of POSTs were not modified by changing the background illumination in the recording room. 6) No significant relation was found between the frequency of POSTs and dream experience during NREM sleep.
研究了人类睡眠脑电图中枕部正锐波（POSTs）的特征，并将其与清醒状态下枕部脑电图中出现的λ波的特征进行了比较。获得了以下结果：1）在接受睡眠检查的189名受试者中，57%观察到了POSTs。显示POSTs的受试者发生率在21 - 30岁年龄组中最高。2）在α波指数高的受试者中，显示POSTs的受试者发生率往往较高。3）POSTs的波形和地形图与λ波有显著相似之处。4）在夜间和日间睡眠中，睡眠开始后最初30分钟的NREM睡眠期间，POSTs的频率最高。5）记录室背景照明的改变未改变POSTs的频率和振幅。6）在NREM睡眠期间，未发现POSTs频率与梦境体验之间存在显著关系。
