If you stare for 30 seconds at a red object and then look at a blank sheet of white paper, you will see a greenish image of the object. This phenomenon BEST supports __________ theory of color vision.
A) the Grieco trichromatic
B) the opponent-process
C) the Helmholtz trichromatic
D) Hering's vibration

Question

Quizplus · Accepted Answer

The opponent-process theory of color vision proposes that there are three opposing color pairs: red-green, blue-yellow, and black-white. When one member of the pair is activated, the other is inhibited. In this case, staring at a red object fatigues the neurons responsible for perceiving red, leading to an overactive response to green when looking at the white paper. Thus, the greenish image of the object is perceived.

If You Stare for 30 Seconds at a Red Object