Kateria stares at an image of the U.S.flag with the stars black, the field around the stars yellow, and the stripes black and green.She then stares at a white sheet of paper.The after-image of a red, white, and blue flag is explained by the _____ theory of color vision.
A)trichromatic
B)opponent-process
C)accommodation
D)gate control

Question

Quizplus · Accepted Answer

The opponent-process theory of color vision suggests that color perception is based on three pairs of opposing color receptors: red-green, blue-yellow, and black-white. Staring at a color for a prolonged time leads to fatiguing of one color receptor in each of these pairs, which results in the perception of the opposing color when the original stimulus is removed. In this case, staring at the black and green stripes in the image of the flag causes fatigue in the green receptor, which leads to the perception of red when Kateria looks at the white sheet of paper, thus creating an after-image of a red, white, and blue flag.

Kateria Stares at an Image of the U