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The Oxford Companion to Consciousness suggests as a way to understand "Shepard’s many-legged elephant": "try slowly uncovering the elephant from the top, or from the bottom." (If you cover the bottom of the drawing, you see the top of an elephant with four legs. If you cover the drawing's top, you see four elephant feet, plus trunk and tail.) [5]
The magnitude of the illusion depends on the properties of the obscuring pattern and the nature of its borders. [ 3 ] Many detailed studies of the illusion, including "amputating" various components [ 4 ] [ 5 ] point to its principal cause: acute angles in the figure are seen by viewers as expanded [ 6 ] [ 7 ] though the illusion diminishes or ...
The widely accepted interpretation of, e.g. the Poggendorff and Hering illusions as manifestation of expansion of acute angles at line intersections, is an example of successful implementation of a "bottom-up," physiological explanation of a geometrical–optical illusion. Ponzo illusion in a purely schematic form and, below, with perspective clues
The Moon illusion is an optical illusion in which the Moon appears larger near the horizon than it does while higher up in the sky. Motion aftereffect: Motion illusion: Müller-Lyer illusion: The Müller-Lyer illusion is an optical illusion consisting of a stylized arrow. Multistable perception: Necker cube
"Hourglass" is the first single released from Squeeze's seventh album, Babylon and On. Aided by an optical illusion-filled music video directed by Ade Edmondson, it received substantial airplay on MTV, and "Hourglass" became the highest-charting hit the band ever had in the United States, peaking at number 15 on the Billboard Hot 100, while reaching number 16 in the UK Singles Chart.
Art historians say Leonardo da Vinci hid an optical illusion in the Mona Lisa's face: she doesn't always appear to be smiling. There's question as to whether it was intentional, but new research ...
Optical illusion is also used in film by the technique of forced perspective. Op art is a style of art that uses optical illusions to create an impression of movement, or hidden images and patterns. Trompe-l'œil uses realistic imagery to create the optical illusion that depicted objects exist in three dimensions.
Kitaoka explained the confusing illusion: "Illusion of strawberry by the two-color method. Although this image are [sic] all made of the pixels of the cyan (blue-green), strawberries appear red."