Ewald Hering proposed the opponent-process theory of color vision which claims:
a. Three types of color receptors are responsible for afterimages.
b. The four types of color receptors are sensitive to red, green, blue and the brightness of the light.
c. A red-green cone can transmit messages for red and green at the same time.
d. Staring at a green, black, and yellow flag for 30 seconds will not disturb the perception of color.
A
Psychology
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Dyslexia is to dyscalculia as
A) spelling is to arithmetic. B) reading is to arithmetic. C) writing it to arithmetic D) reading is to writing. E) spelling is to reading.
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