Does anyone know how works optical illusions?

Question

All knows what is optical illusions, but who knows how its works!?

Yea i know that is very hard question, but maby anyone knows?

Answer 1

Cognitive illusions are assumed to arise by interaction with assumptions about the world, leading to "unconscious inferences", an idea first suggested in the 19th century by Hermann Helmholtz. Cognitive illusions are commonly divided into ambiguous illusions, distorting illusions, paradox illusions, or fiction illusions.

(a). Ambiguous illusions are pictures or objects that elicit a perceptual 'switch' between the alternative interpretations. The Necker cube is a well known example; another instance is the Rubin vase.

(b). Distorting illusions are characterized by distortions of size, length, or curvature. A striking example is the Café wall illusion. Another example is the famous Mueller-Lyer illusion.

(c). Paradox illusions are generated by objects that are paradoxical or impossible, such as the Penrose triangle or impossible staircases seen, for example, in M. C. Escher's Ascending and Descending and Waterfall. The triangle is an illusion dependent on a cognitive misunderstanding that adjacent edges must join.

(d). Fictional illusions are defined as the perception of objects that are genuinely not there to all but a single observer, such as those induced by schizophrenia or a hallucinogen. These are more properly called hallucinations.

Answer 2

i do no longer understand precisely, besides the indisputable fact that it style of looks like it would would desire to deal with focusing of the lenses simply by fact the photos quit spinning when I stare for a whilst. yet when I blink or seem at a different spot the photos initiate spinning lower back. that is my wager.

Answer 3

This isn't really a physics question. It's a question in neurobiology or maybe psychology.