An example for a physiological fiction is an afterimage. A classical example for a physical distortion would be the apparent bending of a stick half immerged in water an example for a physiological paradox is the motion aftereffect (where despite movement position remains unchanged). According to that, there are three main classes: physical, physiological, and cognitive illusions, and in each class there are four kinds: Ambiguities, distortions, paradoxes, and fictions. Illusions come in a wide variety their categorization is difficult because the underlying cause is often not clear but a classification is useful as an orientation.
This application will make your eyes and brain turn supriseĪn optical illusion (also called a visual illusion) is an illusion caused by the visual system and characterized by a visual percept that (loosely said) appears to differ from reality.
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