目的 研究人眼明度视觉感受野“中心-周边”的拮抗特征。方法 设计心理物理实验，测量视觉感知颜色空间CIELAB明度轴上5个明度样本在11个空间频率上的对比敏感度数据；分别采用一元分析法和主成分分析法对实验采集数据进行分析，对比不同明度视觉、空间频率以及对比敏感度阈值之间的函数关系。结果 一元分析表明，5个明度样本的对比敏感度曲线表现为带通特性，明度值越高带通特性越明显；主成分分析表明，以前2个主成分为新变量，可描述人眼视觉感受野特性。结论 人眼视觉在低频1~6 cpd时表现出了“中心-周边”环绕的阶调传递特征；在高频时人眼明度CSF与亮度CSF相似，随着空间频率的升高，人眼视觉对比敏感度降低。

The work aims to study the antagonistic characteristics of human visual receptive field “center-surround”. Psychophysical experiments were designed to measure the contrast sensitivity data of 5 lightness samples on CIELAB lightness axis in visual perceptual color space at 11 spatial frequencies. The data collected from the experiments were an-alyzed by one-dimensional linear regression and principal component analysis, respectively. The functional relationship between different brightness vision, spatial frequency and contrast sensitivity threshold was compared. One-dimensional linear regression showed that, the contrast sensitivity curves of the five lightness samples showed band-pass characteristics, and the higher the lightness value, the more obvious the band-pass characteristics. Principal component analysis showed that, the former two principal components were new variables to describe the characteristics of human visual receptive field. The human vision shows a “center-surround” surrounding tone transfer characteristic at low frequencies of 1~6 cpd. At high frequencies, the brightness CSF of human eyes is similar to brightness CSF. As the spatial frequency increases, the contrast sensitivity of human vision decreases.