Why was the opponent-process theory preferred over the trichromatic theory of colour vision?
A)It explained the existence of complementary afterimages.
B)It supported the greater prevalence of colour blindness in males.
C)It clarified why yellow/blue colour blindness is less common.
D)It indicated why some people see no colour at all.

Question

Quizplus · Accepted Answer

The opponent-process theory explains the existence of complementary afterimages, where staring at one color for an extended period of time will cause a complementary color to appear when the staring stops. This phenomenon cannot be explained by the trichromatic theory alone.

Why Was the Opponent-Process Theory Preferred Over the Trichromatic Theory