【摘要】 实验中采用电视显示法以测定人眼对彩色正弦光栅的对比敏感性,并通过彩色正弦光栅选择性适应后效的试验来阐明空间频率通道和色通道之间的相互关系。实验结果表明:1.人眼在2°视角间视状态下对不同彩色正弦光栅的对比敏感性有差别,绿色光栅的对比敏感性比蓝、红色高。对彩色正弦光栅的对比敏感性在低频处有衰减。2.人眼在2°视角时对彩色正弦光栅的空间适应范围和最低空间频率通道的位置均在0.8周/度处。彩色光栅(0.8周/度至3.5周/度)适应后效的带宽具有明显的非对称性。3.彩色光栅的适应后效主要决定于亮度的空间频率通道,但色通道的影响也是存在的。更多还原

【Abstract】 Experimental data suggest that for at 2°visual field during mesopicvision contrast sensitivity of human eye to chromatic sine gratings isdifference. Most were more sensitive to the green grating than the blue andred gratings. It was found that at the range of the low spatial frequencycontrast sensitivity to chromatic sine gratings is also attenuated. It was demonstrated that range of the spatial adaptation to coloured sinegratings and position of the lowest spatial frequency channels all stayed at the0.8c/d. Bandwidth of adaptation aftereffect to chromatic gratings is alsoassymetric. It was concluded that adaptation aftereffect of chromatic gratingsis mainly associated with the white-black channels, and, also with the colorchannels.更多还原