The human brain is blessed with the attribute of perceptions! Brain is the baton that acts according to the senses of a human brain. Each sensory organ plays a vital role in sensing; however eye is the king of all. Eye is considered as the super - Photoshop genius, since the retina captures the image upside down and backwards. It sends signals to the brain which percepts the original image. There is a phenomenon which is called optical illusion which is the trick of the eye.



Optical Illusion is described as an illusion in the domain of virtual perception that is tickled in the virtual system. It is a visual percept that arguably appears to different from reality. The sixth century expert Socrates called it as ' Magic' or ' Trick of the eye'. Optical illusion are the hot cakes. that are ruling the world Irrespective of age and gender.

Do you surf net? Or Are you active in forwarding images! Then you are sure to hit on these images that asks to infer the images.



Optical illusions are broadly classified into three types, they are physiological , cognitive and literal. Physiological illusions are the ones that are result of the perception due to the factors of brightness, movement or tilt end till we experience it to a degree. Our brains will fill in the gaps and images. The image that should be there is called ' After image' . We would have experienced the illusion without even knowing that it is an optical illusion. The best example of physiological illusion is the Hermann Gridd. They are white grids with black squares, when you see directly. But as you move your eyes across the pattern, we see grey spots on the smudges where the black lines cross each other.



Cognitive illusions are the most important and familiar illusions because it tells how one individual percepts an image. In simple words, it tells how an individual looks at an image differently. Based on this perception, this cognitive illusion is broken down into four types.

Ambiguous,

distorting,

Paradox,

Fictional

The most important example of this type of illusion is ' My wife and my mother- in-law' .It has two figures. One is old and one is young. Each individual differently percepts to see either young or the old. Some studies also say that the young persons see the young woman first and old people

tend to see the old woman first.



Literal illusion are explained as the illusion created with a specific purpose . They are created without the interception of cognitive or physiological illusions. The literal illusion are stable in arts. The bigger image is fed with small images. All the museum will surely have artefacts or art pieces that feed upon the literal illusion.



Artists such as Rena Magritte and Octavio Ocampo are famous for using illusions in their works. The favourite example of literal illusion is elephant illusion. It is drawn with specific purpose of confusing the viewer.



Aren't you interested about the illusion after reading the article, then you are the kind of person who must surely vist the museum of illusions in New York City. You will be surely impressed and can feel stunning too, amidst your friends. This provide food to your senses and captivate the brains of illusions.