All About Optical Illusions |
| Date Added: February 14, 2011 07:53:59 AM |
| Author: inhfo23 |
| Category: Recreation: Games |
| Our world is full of enigmatic things. A number of them can't be described even by scientific experts. Others constitute a group of illusions. World of illusions is wide, few people possess good knowledge about it. Everyone knows that when a spoon is dropped into a glass of water it seems broken, though in reality it isn't. There is a great range of other similar optical illusions. Watching various types of optical illusions is a wonderful way of spending time for people with broad mind. Optical illusions are characterized by visually perceived images that differ from object reality. Our eyes gather info that is processed by brain. As a consequence we get a percept that does not match to what's objectively displayed. The sorts of the visual illusions are different according to the object that forms this optical illusion. For example, literal illusions create images that are really different from the objects that formulate them. You have possibly observed the pictures where at the first sight you observe a certain object, but when you look more attentively you realize that this image is formed using other objects. An example of this literal visual illusion is a vase formed by two faces. Such images are usually named ambiguous pictures. It's sometimes really hard to notice another picture on the same image. Physiological visual illusions have certain effect on our eyes and brain and in result we get an illusion of various parameters – brightness, color, movement, size. For example, there are pictures where some objects look as if they are of different size or color, when in objective reality they are the same. Muller-Lyer illusion with arrows is a great example of this sort of visual illusions. Cognitive illusions make the brain made incorrect conclusions from what the eyes observe. These illusions include paradoxical and impossible things such as Penrose triangle and impossible staircase, as well as hallucinations. Optical illusions constitute a great amusement for all the people. Besides, they help us to look at our world from the other side. As a result our mind will get flexible that will definitely help you in future. |
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