Article Details
Stereograms - Things To Remember |
| Date Added: February 20, 2011 05:34:10 PM |
| Author: inhfo23 |
| Category: Entertainment: Games |
| Our contemporary world is full of mysterious things. A number of them cannot be described even by scientific experts. Others represent a range of illusions. World of illusions is great, not many people have deep knowledge about it. Everyone has noticed that when a spoon is dropped into a glass of water it seems broken, although in objective reality it isn't. There is a wide range of other resembling optical illusions. Observing various sorts of optical illusions is a wonderful pastime for people with inquisitive mind. Optical illusions are characterized by visually perceived images that differ from object reality. An eye gathers information that is processed by brain. In result we get a percept that does not correspond to what is objectively displayed. The types of the optical illusions are different according to the object that forms this illusion. For example, literal illusions create images that differ from the objects that make them. You have possibly observed the pictures where at the first sight you notice a certain object, but if you look more attentively you realize that this image is formed using other objects. An example of this literal visual illusion is a Figure-grounded vase. Such pictures are usually named ambiguous pictures. It is from time to time really difficult to see another image on the same picture. Physiological optical illusions have certain effect on our eyes and brain and in result we get an illusion of various parameters – color, brightness, movement, size. For instance, there are pictures where some things seem to be of different size or color, when in objective reality they are absolutely the same. Visual illusion of Muller-Lyer with arrows is a great example of this sort of visual illusions. Cognitive visual illusions make the brain made not correct conclusions from what our eyes see. These are paradoxical and impossible things such as Penrose triangle and impossible staircase, and hallucinations as well. Optical illusions represent an excellent entertainment for people. What's more, they help to have a look at our world from another side. As a consequence your mind will get more flexible that will definitely help you in life. |
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