关联性负变实验时的“类习惯化”现象

A Quasi-habituation Phenomenon of Contingent Negative Variation (CNV) in Experiments

在进行关联性负变(简称CNV)实验过程中见到,10次、20次叠加后的CNV波幅、面积一次均值明显小于第1次(P<0.01),而10次、20次叠加后的一次均值之间无显著性差异。这可能因对刺激的朝向反应渐弱所致。CNV尚与其它多种心理因素相关,并不因朝向反应之消失而消失。因而不能完全出现习惯化现象,可称为“类习惯化”现象。

In making the contingent negative variation (CNV) experiments, it has been observed that the amplitude and area of CNV at first stimulation is larger than those of the 10 times and 20 times averages while the amplitude and area between 10 times and 20 times averages have no significant differences, which may be brought about by the weakening of the orientative response on the stimulation. CNV is related to many other psychological factors and will not disappear with the disappearance of the orientative response. Therefore, the habituation phenomenon could not appear completely. So,only a quasi-habitua-tion phenomenon of CNV appears.