| Our modern world is full of enigmatic things. Some of them cannot be described even by scientists. Others constitute a group of illusions. Illusion world is great, few people have deep knowledge about it. Every person has noticed that when a spoon is dropped into water it seems broken, though in objective reality it is not. There is a great range of other resembling optical illusions. Observing different kinds of illusions is a good way of spending time for people with broad mind.
Optical illusions are characterized by images perceived visually that are different from what they are in object reality. An eye gathers information that is processed by brain. As a consequence we obtain a percept that does not match to what's really displayed. The sorts of the visual illusions differ in accordance with the object that creates this illusion. For instance, literal optical illusions form images that are really different from the objects that formulate them. You have possibly seen the pictures where at the first sight you observe a certain object, but when you look more attentively you realize that this image is created with the use of other objects. An example of this literal visual illusion is a Figure-grounded vase. These pictures are commonly called ambiguous images. It is from time to time really difficult to see another picture on the same image.
Physiological visual illusions have a certain effect on our brain and eyes and as a result we have an illusion of various parameters – color, brightness, size, movement. For instance, there are images where some things look as if they are of different color or size, when in reality they are absolutely the same. Visual illusion of Muller-Lyer with arrows is a great example of this sort of visual illusions. Cognitive optical illusions make our mind made incorrect conclusions from what the eyes observe. These are paradoxical and impossible things like Penrose triangle and impossible staircase, as well as hallucinations.
Optical illusions constitute a wonderful entertainment for all the people. What's more, they help to look at our world from another side. In result your brain will get more flexible that will certainly assist you in future. |
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