Gaillard A W
Biol Psychol. 1976 Jun;4(2):139-54. doi: 10.1016/0301-0511(76)90013-2.
CNVs were recorded during the S1-S2 interval of a prolonged simple reaction task. In the task, a warning stimulus S1 is followed by an imperative stimulus S2, to which the subject makes a motor response. The differential effects of a visual and an auditory S1 were investigated under two interstimulus interval (ISI) durations (1 and 3 sec). Under the 3 sec ISI condition, the form of the slow negative wave demonstrated clearly a biphasic character: an orientation wave (O wave) following S1 with a peak latency at about 650 msec and an expectancy wave (E wave), which reaches its largest amplitude towards the end of the ISI. Under the 1 sec ISI condition the two components of the CNV are confounded. The O wave had a fronto-central distribution, while the E wave was located precentrally. The O wave was enhanced after an auditory S1, as compared to a visual S1.
在一个延长的简单反应任务的S1 - S2间隔期间记录了CNV（ contingent negative variation，关联性负变 ）。在该任务中，一个警告刺激S1之后跟着一个指令刺激S2，受试者对S2做出运动反应。在两种刺激间隔（ISI）时长（1秒和3秒）下研究了视觉S1和听觉S1的不同影响。在3秒ISI条件下，慢负波的形式明显表现出双相特征：跟随S1的一个定向波（O波），其峰值潜伏期约为650毫秒，以及一个预期波（E波），它在ISI接近结束时达到最大振幅。在1秒ISI条件下，CNV的两个成分相互混淆。O波具有额中央分布，而E波位于中央前。与视觉S1相比，听觉S1后O波增强。
