Grant perceives snow as remaining white on cloudy days as well as on bright ones. He is not fooled, even though the amount of light the snow reflects is different on cloudy days. Grant's perception is due to _______________.
A) convergence
B) relative clarity
C) texture gradients
D) brightness constancy

Question

Quizplus · Accepted Answer

Grant's perception of the snow remaining white on both cloudy and bright days is due to brightness constancy. Brightness constancy is the perceptual phenomenon where the perceived brightness of an object remains constant despite changes in the amount of light reflected by the object. So, even though the amount of light reflected by the snow may be different on cloudy days compared to bright days, Grant's brain perceives the snow as the same color and brightness due to brightness constancy.

Grant Perceives Snow as Remaining White on Cloudy Days as Well