The theory of color vision that contends that the eye has two kinds of cones,responding to either the red-green or yellow-blue range of wavelength,is the
A) opponent-process theory.
B) trichromatic theory.
C) dichromacy theory.
D) stereochemical theory.

Question

Quizplus · Accepted Answer

The opponent-process theory of color vision suggests that the visual system interprets color in an antagonistic way: it sees colors as opposing pairs (red-green, yellow-blue, and black-white). This theory complements the trichromatic theory, which posits three types of cones sensitive to different wavelengths (short, medium, and long), by explaining phenomena the trichromatic theory cannot, such as afterimages and the fact that certain color combinations (like reddish-green) are never seen.

The Theory of Color Vision That Contends That the Eye