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 Scientists in safety vest have created a new optical Alerter l'administrateur Recommander à un ami Lien de l'article 

Australian scientists in safety vest have created a new optical illusion that reveals how our brains evaluate the material properties of an object.


Researchers at the University of New South Wales made with the aid of the computer an image of an object with a refractive index of glass. Then they put the image on a photograph with a clear horizon.


Transparent or not

When people see the picture, they think the object is made of transparent material. But turn out to be the picture than the same object appears suddenly made of shiny, opaque reflective material.


Above or below

"It's a brand new optical illusion," says researcher Juno Kim. "And shows that the visual system has learned to rely on the orientation of the horizon and or bright spots are located at the top or bottom of an object, and on the basis thereof determines the brain or objects are transparent or not. It shows that our brain is wondering: which side is the top "?


"Our brain is very advanced, but when the material properties of an object trying to distract from impaired light patterns caused by reflection of light on the reflective surface of the object, the yeast based on previous experiences. This optical illusion seems to be driven by two major biases in the brain. The first is the assumption that a light source shines generally from above. This bias is the reason that people look scary and quite different under their chin. The brain is accustomed to processing faces while light comes from above. And the second bias is that most objects are generally spherical in shape. "

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  Blog créé le 17-09-2014 à 07h53 | Mis à jour le 21-06-2018 à 11h18 | Note : Pas de note