Judged: two independent readers; copy check clear.
corridor illusion
corridor illusion The corridor illusion is a visual size illusion in which two physically identical circles look different in size when one is shown at the near end of a corridor and the other at the far end.
The corridor illusion is a visual size illusion in which two physically identical circles look different in size when one is shown at the near end of a corridor and the other at the far end. The circle placed farther away appears larger, reflecting a mismatch between perceived and actual size created by pictorial depth cues.