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 colour vision.
A)Grieco trichromatic
B)opponent process
C)Helmholtz trichromatic
D)Hering's vibration

Question

Quizplus · Accepted Answer

The opponent process theory of color vision posits that the visual system processes color through opposing color channels (red-green, blue-yellow, black-white). Staring at a red object stimulates the red-green color channel, leading to fatigue in the red receptor cells and an afterimage of the complementary color, which in this case is green. The Helmholtz trichromatic theory and the Grieco trichromatic theory both explain color vision in terms of three types of photoreceptor cells, while Hering's vibration theory proposes that we perceive color based on opposing pairs of red-green and blue-yellow hues that vibrate against each other. However, none of these theories account for the specific afterimage discussed in the question.

If You Stare for 30 Seconds at a Red Object