Describe how we process color information using both the trichromatic and opponent-process theories of color vision. Explain why each of these theories explains color vision and why they are not in competition.
What will be an ideal response?
The trichromatic theory suggests that we have three cone types-blue, green, and red-that are sensitive to different wavelengths of light. The opponent-process theory suggests we have color-opponent neurons to color pairs: red-green and yellow-blue. These theories explain the dual process of color vision, wherein the first level of processing is at the cone level, which provides input for the opponent-process level, occurring later in the pathway.
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