According to the opponent-process theory, if you stare at a red star for a while (e.g., 60 seconds) and then look at a plain sheet of white paper, you will see an afterimage of the star in which hue?
A) yellow
B) blue
C) green
D) red

Question

Quizplus · Accepted Answer

According to the opponent-process theory, staring at a red star fatigues the red photoreceptors, and when you look at a white surface, the opposite color in the red-green pair, which is green, becomes more prominent, resulting in a green afterimage.

According to the Opponent-Process Theory, If You Stare at a Red