Miyauchi S, Takino R, Azakami M
Department of Psychology, Faculty of Letters, Waseda University, Tokyo, Japan.
Electroencephalogr Clin Neurophysiol. 1990 Jul;76(1):19-28. doi: 10.1016/0013-4694(90)90054-n.
Polygraphic recordings were collected for 11 normal subjects during sleep and wakefulness in order to investigate characteristics of the rapid eye movement (REM) associated potentials. EEGs were averaged using 5 different triggering points: (1) saccade onset under the normal ambient illumination, (2) saccade onset in the total darkness, (3) onset of REMs during REM sleep, (4) flash during REM sleep, and (5) flash during stage 2 sleep. In the central area, positive potentials appeared with waking saccades under the normal ambient illumination (P240L) and REMs (P185R). The latency of P185R associated with REMs was significantly shorter than that of P240L associated with waking saccades. These findings suggest that P185R is evoked by PGO waves occurring just before the REM. A small positive potential appeared in the occipital area with waking saccade under the normal ambient illumination (P260L) and REMs in the total darkness (P250R). Conspicuous absence of these waves for waking saccades in the total darkness suggests that P250R accompanied with REMs reflects activities involved with the cognitive processes occurring when a subject scans a dream image during REM sleep.
为了研究快速眼动（REM）相关电位的特征，对11名正常受试者在睡眠和清醒状态下进行了多导记录。脑电图使用5个不同的触发点进行平均：（1）正常环境光照下的扫视开始，（2）完全黑暗中的扫视开始，（3）REM睡眠期间的快速眼动开始，（4）REM睡眠期间的闪光，以及（5）第2阶段睡眠期间的闪光。在中央区域，正常环境光照下清醒扫视（P240L）和快速眼动（P185R）时出现正电位。与快速眼动相关的P185R的潜伏期明显短于与清醒扫视相关的P240L的潜伏期。这些发现表明，P185R是由快速眼动之前出现的PGO波诱发的。在正常环境光照下清醒扫视（P260L）和完全黑暗中的快速眼动（P250R）时，枕叶区域出现一个小的正电位。在完全黑暗中清醒扫视时这些波明显缺失，这表明与快速眼动相关的P250R反映了受试者在REM睡眠期间扫描梦境图像时发生的认知过程所涉及的活动。
