According to the Young-Helmholtz theory
A) the retina contains three kinds of color receptors.
B) color vision depends on pairs of opposing retinal processes.
C) the size of the difference threshold is proportional to the intensity of the stimulus.
D) certain nerve cells in the brain respond to specific features of a stimulus.

Question

Quizplus · Accepted Answer

The Young-Helmholtz theory, also known as the trichromatic theory, proposes that color vision is based on the existence of three different types of color receptors (cones) in the retina, each sensitive to a different range of wavelengths. This theory explains how we can perceive millions of colors by combining the signals from these three types of cones.

According to the Young-Helmholtz Theory