Which of the following statements is correct regarding the trichromatic and opponent-process theories of color vision?
a. Research suggests that the trichromatic theory is incorrect.
b. Research suggests that the opponent-process theory is incorrect.
c. Both theories are correct; they simply describe color processing at different steps in the visual system.
d. Researchers are still uncertain about which of the two theories is correct.
Answer: C
Rationale: The workings of the trichromatic theory concern different types of cone photoreceptors, while the opponent-process theory focuses on the existence of specialized nerve cells for perceiving color.
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