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 the __________ theory of color vision.
A) Young-Helmholtz opponent-process
B) Young-Helmholtz trichromatic
C) Hering opponent-process
D) Hering trichromatic

Question

Quizplus · Accepted Answer

The phenomenon described is best explained by the Hering opponent-process theory of color vision, which posits that the human visual system interprets color in terms of opposing pairs: blue-yellow, red-green, and black-white. After staring at a red object, the red-green color channel becomes fatigued, leading to a stronger response from the green side when looking at a neutral (white) background, hence the greenish afterimage.

If You Stare for 30 Seconds at a Red Object