Which perceptual illusions involve size constancy?
A) the moon illusion and the Shepard Tables illusion
B) the Müller-Lyer illusion and the impossible figure illusion
C) the moon illusion and the Müller-Lyer illusion
D) the carpentered-world illusion and the Shepard Tables illusion

Question

Quizplus · Accepted Answer

The moon illusion and the Müller-Lyer illusion both involve size constancy. The moon illusion refers to the perception that the moon appears larger when it is near the horizon than when it is higher in the sky, even though its actual size does not change. The Müller-Lyer illusion is the perception of two lines of equal length as being different due to the addition of inward or outward pointing arrows at their ends, triggering the perception of depth and altering the perception of their size.

Which Perceptual Illusions Involve Size Constancy