While the Trichromatic Theory of Color Perception Was First Formulated

question 55

Multiple Choice

While the trichromatic theory of color perception was first formulated in the 1800's; research in 1960s suggested that there were ________ kinds of cones and that each was sensitive to either ________.

• A) two…red, blue
• B) three…red, green, white
• C) two…red; green
• D) three…red, green, blue