When that in the childhood we very much liked to have a good time, examining pictures which moved also lines which seemed broken and convex. Even school notebooks with such drawings could be bought continually. Always surprised us as well as why we see one, and another is actually represented. The fact is that optical deception is, first of all, a perception error, deception of our sight. However, there are different reasons of such optical deception. As a rule, their two – physical and psychological. They are connected with inaccuracy of processes of correction of visual function. Therefore optical optical illusion by two sciences – psychology and physiology of visual perception is studied at once.
Pictures in which optical deception is used have the mass of versions. One group is made by the images which are specially created by psychologists for researches of human mentality. Developments of a geshtaltpsikhologiya and the Rorshakh's Spots test concern them. In this case properties and a condition of intelligence of the person are tested, and optical illusion is caused intentionally.
Sometimes optical deception is created by the person. For example, many of us in the childhood tried to see a familiar form in clouds. And three-dimensional objects, thanks to play of light and shadow create inexplicable illusions at all. For example, pareydoliya. It is a type of illusions when a usual real object is perceived in the distorted form. And the whole group of people can see such optical deception. So, it happened in 2001 during the fire in the well-known World Trade Center. Many people saw the image of evil spirit in smoke.
Or the scandalous case described in the press when on Mars found the image of the human head can serve as an example. Which, however, disappeared when photos of this area made from a different angle. Despite the similar phenomena, the main group of optical illusion make the optical illusions created as entertainment or for a training of eyes:
Illusion of perception of color. Optical deception arises because of the fact that identical colors are perceived by our sight as different if to replace one background with another.
On this picture the optical optical illusion is created thanks to a grid and contrast of flowers. Actually all red squares of one color.
Illusion of recognition of images. In such drawings the optical deception consists in impossibility to see what is represented if you about it do not foreknow. On the very first picture the baby is represented.
Illusion of the movement. At a view of such illusion, optical deception will force you to believe that the image moves, fluctuates in different directions, and identical objects become different.
Illusions - shifters. In this type of illusions the nature of the image depends on the direction of a look. In different foreshortenings it is possible to see different drawings.
Optical deception "Impossible". In attempt to track lines of such drawings, there is an optical deception – the tilt angle of these lines and their direction cardinally changes
Stereos are illusions. Are known also as autostereograms. The most unique of all types of optical deception. It is created by means of imposing of the drawing on periodically repeating structure that when focusing a look creates effect of the volume image.
If it is possible to try to see 4 chairs here.
Illusions and optical optical illusion can be met not only distorting space, a form and volume. Watch clouds, a play of light, beams of the sun and patches of light of water and you will meet a lot of illusions, created by the nature.
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