optical illusion

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optical illusion

A visual impression that is inaccurately perceived.
See also: illusion
References in periodicals archive ?
Trompe l'oeil is an art technique that uses real images to produce optical illusions that portray objects in 3-D.
With over 70 exhibits, the Museum of Illusions has the largest collection of holograms, stereograms and optical illusions in the entire Middle East.
Besides optical illusions, there are auditory and tactile (related to touch) illusions.
The book with the highest number of votes wins, and the interactive Eye Benders, full of optical illusions and mind-boggling pictures that trick the brain then explains the science behind each trick of the eye, was described by chairman of the judges Professor James Hough as "an enthralling book which captivates children and adults".
These ceramics are built by using the maximum plasticity of the clay and natural textures are placed upon them, thus optical illusions occur in the audience's mind.
BEIRUT: Optical illusions are two-dimensional drawings that play tricks on the eyes, deliberately creating an effect that is wrongly interpreted by the brain.
I used to look at some of optical illusions in newspapers and internet, but not always could I see the catch.
Designer Paul Murphy's optical illusions are capturing the imagination of businesses across the world.
This book of brain puzzles and optical illusions will appeal to fans of visual tricks and those new to the subject.
With the aid of some interesting optical illusions, he's determined to change his mother's mind and solve the mystery.
With an out-of-thisworld set, Doctor Who Live will feature special FX, optical illusions and spectacular pyrotechnics building to an epic finale.
The response to his memo, explained that following an intelligence study conducted in 1951 the "flying saucers" could be explained by "one or other" of the following four causes: Known astronomical or meteorological phenomena; mistaken identification of conventional aircraft, balloons, birds etc; optical illusions and psychological delusions; and deliberate hoaxes.