THE EFFECTS OF PROLONGED TEMPORAL-MODULATION ON THE DIFFERENTIAL RESPONSE OF COLOR MECHANISMS

被引：25
|
作者：
SHAPIRO, AG
ZAIDI, Q
机构：
[1] Department of Psychology, Columbia University, New York
来源：
VISION RESEARCH | 1992年 / 32卷 / 11期
关键词：
COLOR VISION; HABITUATION; ADAPTATION; SENSITIVITY; GAIN CONTROL;
D O I：
10.1016/0042-6989(92)90068-T
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
The identification of three independent cardinal directions in color space suggests the existence of three independent post-receptoral mechanisms that can be desensitized by habituation to a temporally modulated light. In this paper, the differential response of each cardinal mechanism is estimated over a range of inputs before and after habituation. Simple mathematical considerations show that the threshold elevations following temporal modulation are not consistent with multiplicative gain changes; rather, these elevations require a change in the shape of each cardinal mechanism's response function. With this method, the effects of habituation can also be differentiated from the effects of a change in the steady adapting light.
引用
收藏
页码：2065 / 2075
页数：11
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