The theory that challenged Helmholtz's theory of color vision is _______________?
Correct answer: B. opponent-process theory
- A. frequency theory
- B. opponent-process theory
- C. isomorphism
- D. trichromatic theory
Explanation
Opponent-process theory challenged the trichromatic account associated with Helmholtz by proposing paired color processes such as red-green and blue-yellow. Frequency theory concerns hearing, not color vision.
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