In the Ponzo illusion,cues to size and to distance conflict.The fact that an illusion of size is created suggests that:
A) monocular depth cues cannot operate correctly with conflicting cues to size
B) the cues to distance are more accurate here than the cues to size
C) perceived size is computed from perceived distance
D) perceived distance is computed from perceived size

Question

Quizplus · Accepted Answer

The Ponzo illusion occurs because the converging lines create the illusion of depth, leading our brains to perceive the top line as being further away than the bottom line. Since we perceive the top line as further away, we also perceive it as being larger due to size-distance scaling or the idea that objects that are further away appear smaller, and objects that are closer appear larger. Therefore, perceived size is computed from perceived distance in this illusion.

In the Ponzo Illusion,cues to Size and to Distance Conflict