Perception

AP Psychology· difficulty 3/5

Constancy Perceived as stable... Size despite distance changes Shape despite viewing-angle changes Color despite illumination changes Brightness despite changes in light intensity Perceptual constancies

A door is perceived as rectangular even when seen from a sharp angle (and projects a trapezoid on the retina). Which constancy is illustrated?

  • A

    Shape constancy

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  • B

    Size constancy

  • C

    Color constancy

  • D

    Brightness constancy

Explanation

Shape constancy lets us perceive an object's true shape despite changes in viewing angle that distort its retinal projection.

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