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Visual illusion
consistent misperception of external stimuli that occurs as a result of distortion in perception
distortion of visual perception
When there is a mismatch between our visual perception and physical reality
how do visual illusions enhance understanding of visual perception
By allowing us to understand how our brain constructs our views of the world.
apparent distance theory
If two objects cast the same retinal image size but are of different distance, the object with greater distance is further.