While attempting to overcome writers block, Devin stares at her yellow, green, and white striped journal. When she finally returns to her blank computer screen, she sees a blue, red, and black striped afterimage. Which theory best explains the afterimage that Devin sees?
a. negative illusion theory
b. excitation emission theory
c. trichromatic theory
d. opponent process theory
Question 2
What anatomical feature of the retina supports the opponent theory of color recognition?
a. Groups of cells that process yellow and blue or red and green are located together.
b. Cells that process red and green occupy different clusters within the center of the retina; blue and yellow cells occupy different clusters within the periphery of the retina.
c. Cones are more efficient at processing yellow and blue; rods are more efficient at processing red and green.
d. Cells responsible for detecting yellow, blue, red, or green are located in opposing clusters within the retina.
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For a differential white blood cell count, (A) the slide is examined under oil immersion. (B) Cells ...