Perceiving Colors in Psychology Essay Assignment

Perceiving Colors in Psychology Essay Assignment

• Suppose a person with only one type of cone is shown two monochromatic lights of different wavelengths but with the same physical intensity. Does the person, who is truly color-blind, necessarily see the two lights as identical? Why or why not?
• You stare for several minutes at a large white screen illuminated with bright green light—that is, a light with maximal spectral power in the green range of the spectrum. Then you are shown a scene with many objects of various colors, illuminated with bright white light. How will chromatic adaptation affect your perception of the objects’ colors? Perceiving Colors in Psychology Essay Assignment
  

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• In a metameric color-matching experiment with a participant who has only L-cones, the test light is 500 nm with a fixed intensity of 5,000 photons/sec. The comparison light is 450 nm with an adjustable intensity. Assume that the sensitivity of L-cones to 450 nm light is 30% (i.e., L-cones absorb and transduce 30% of the photons of this light) and that their sensitivity to 500 nm light is 50%. At what intensity of the comparison light will the participant perceive a metameric color match with the test light. Perceiving Colors in Psychology Essay Assignment.