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 explains that sensory receptors for color are arranged in three pairs: red-green, blue-yellow, and black-white. Staring at a red object for 30 seconds causes fatigue in the red-green sensory receptors, which then enhances the green images on the white paper, leading to the greenish image of the object. Thus, the opponent-process theory best supports this phenomenon.

If You Stare for 30 Seconds at a Red Object