The additivity of contrast in the human eye.
The additivity of contrast in the human eye.
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DOI：
10.1085/jgp.43.1.109
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发表时间：
1959-09
影响因子：
3.8
通讯作者：
DAVID, H
中科院分区：
文献类型：
--
作者：
ALPERN, M;DAVID, H
采用双目亮度匹配的方法，对两个观察者同时测量亮度对比效果。给定模式的影响总是小于该模式各组成部分的影响之和。这种可加性失败对于具有独立组件的模式以及具有彼此完全相邻的组件的模式都是有效的。诱导图案距离测试补丁越远，这种失败就越明显。这些发现被解释为表明在人眼中（就像鲎一样），给定区域对其相邻区域施加的抑制量取决于对其施加的抑制及其激发状态。
Using the method of binocular brightness matching, simultaneous brightness contrast effects were measured on two observers. The effects of a given pattern were invariably smaller than the summation of the effects of the pattern's components. This failure of additivity was valid both for patterns with isolated components as well as for those with components exactly contiguous with one another. This failure was more pronounced the farther the inducing patterns were from the test patch. These findings are interpreted as indicating that in the human (just as in the Limulus) eye, the amount of inhibition exerted by a given region on its neighbors depends upon the inhibition exerted against it as well as its excitation state.