Moderate

You walk into a dark movie theater wearing a white shirt, and notice that the shirt now looks gray. However, you know that the shirt is still white because of _________________?

Correct answer: B. brightness constancy

  • A. size constancy
  • B. brightness constancy
  • C. linear perspective
  • D. texture gradient

Explanation

Brightness constancy allows a familiar object to be perceived as having a stable brightness despite changes in illumination, so the white shirt is still judged white in the dark theatre. Size constancy concerns perceived size, not brightness.

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