Question

After staring at a green, black, and orange "American flag" for about a minute, an individual will see a red, white, and blue flag afterimage. Which of the following explains this phenomenon?

A. Trichromatic theory
B. Opponent-process theory
C. Retinex theory
D. Color constancy
E. Convergence

Answer 1

B. Opponent-process theory

Step-by-step explanation:

Opponent process theory was developed by Ewald Hering, it states that the cone photoreceptors of the retina are linked together to form three opposing colour pairs: blue/yellow, red/green, and black/white. The opponent process theory explains how opposing after images are formed. Ewald Hering explained that when one member of the colour pair (black) is "fatigued" by extended inspection, inhibition of its corresponding pair member(white) is reduced and this results in increase in the relative activity level of the unfatigued pair (white) thus causing it to be perceived.