The opponents-process theory of color vision is based on the idea that the retina contains
A)three types of simple receptors sensitive to red, green, and blue.
B)three types of receptors, two sensitive to color and one to differences in brightness.
C)three sets of cells responsive to brightness.
D)three types of receptors responsive to primary colors.

Question

Quizplus · Accepted Answer

The opponents-process theory posits that the retina contains three types of receptors: red-green, blue-yellow, and black-white. These receptors are sensitive to differences in wavelength and respond in an opposing manner: red and green, blue and yellow, and black and white. This theory explains why we perceive complementary colors, such as red and green, as opposed to appearing similar or indistinguishable.

The Opponents-Process Theory of Color Vision Is Based on the Idea