There are two levels of processing involved in color vision. The first occurs in the retina and the second in the nerves cells that relay and process color information. Identify and explain the theory associated with each level
What will be an ideal response?
Answer: A good answer will include the following key points.
? The first level of processing occurs in the retina and is explained by the trichromatic theory.
? The retina contains three types of cones, each of which responds to a different range of wavelength (blues, greens, and reds).
? The colors we see result from the combined activity of these three types of cones.
? The second level of processing occurs in nerves that relay and process color information and is explained by the opponent-process theory.
? the opponent-process theory states that we perceive color in terms of opposite ends of the spectrum: red to green, yellow to blue, and white to black.
? A cell that is stimulated by red is inhibited by green, and a cell stimulated by blue inhibits yellow.
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a. true b. false