According to one theory of color vision,colors are signaled in pairs by neural cells that signal faster to one color and slower to another color.This theory is known as the ________ theory.
A) opponent-process
B) trichromatic
C) stereochemical
D) complementary

Question

Quizplus · Accepted Answer

The opponent-process theory proposes that colors are perceived in pairs, with one member of each pair inhibiting the other. Specifically, the theory posits three pairs of opponent colors: blue-yellow, red-green, and black-white. This theory helps to explain phenomena such as negative afterimages and color-blindness. 
The trichromatic theory proposes that there are three types of color receptors in the retina, each corresponding to a different range of wavelengths (red, green, and blue). This theory helps to explain how we can see millions of different colors by combining signals from these three types of receptors. 
The stereochemical theory is not a recognized theory of color vision. 
The complementary theory is a different concept altogether, relating to the idea that colors opposite each other on the color wheel (e.g. red and green) are particularly pleasing to the eye when used together.

According to One Theory of Color Vision,colors Are Signaled in Pairs