色光适应条件下对人眼颜色感受性变化的研究及其机制的初步探讨

The fact of change in human vision sensitivity in color adaption was studied with the method of minimo step change. In this experiment, subjects were asked to judge the just-different threshold on 1° target stimulus which superimposed on 6° background. The target and the surrourding field flicked and different kinds of stimuli were shown to Ss. Data of Pre-color adaption and that of post-color adaption have been compared and ① Evidence of opponent effect is found. This result is contraversary to coefficient law and the "two process" hypothesis are supported; ② Opponent effect is strongly related to the kinds of stimuli ③ When the background light flicks, subjects sensitivity to target stimuli is obviously increased while under the condition of flicking target stimuli less increase can be found. But the increase in sensitivity seem to be not related with color adaption.