The trichromatic and opponent process theories of colour vision are not in conflict because each corresponds to:
A)a different portion of the spectrum.
B)different mediums (light versus colour).
C)different spectrums (the whole spectrum versus the visible spectrum).
D)a different stage of visual processing.

Question

Quizplus · Accepted Answer

The trichromatic theory explains the first stage of visual processing where three types of cones respond to different wavelengths of light, allowing us to perceive all colours. The opponent process theory explains the second stage of visual processing where certain wavelengths of light are processed in opposing pairs (red-green, yellow-blue, and black-white) and allows us to perceive colour contrasts. Therefore, both theories correspond to a different stage of visual processing and are not in conflict.

The Trichromatic and Opponent Process Theories of Colour Vision Are