| Our contemporary world is full of enigmatic things. A number of them can't be described even by scientific experts. Others represent a range of illusions. World of illusions is great, few people possess good knowledge about it. Everyone has noticed that when a spoon or a fork is dropped into a glass of water it seems to be broken, although in objective reality it is not. There is a wide range of other similar optical illusions. Observing different types of illusions is a good pastime for people with broad mind.
Optical illusions are characterized by images perceived visually that are different from object reality. Our eyes gather info that is processed in mind. In result we obtain a percept that doesn't correspond to what is objectively displayed. The types of the visual illusions differ according to the object that forms this illusion. For example, literal optical illusions form images that differ from the objects that make them. You have probably observed such pictures where at first you notice a certain object, but when you look attentively you realize that this picture is created using other objects. An example of this literal visual illusion is a figure-grounded vase. These images are commonly called ambiguous images. It is sometimes really difficult to notice another picture on the same picture.
Physiological illusions have certain effect on our eyes and brain and in result we get an illusion of various parameters – brightness, color, movement, size. For instance, there are pictures where some things seem to be of different size or color, when in reality they are the same. Visual illusion of Muller-Lyer with arrows is an excellent example of this type of visual illusions. Cognitive visual illusions make our brain made not correct conclusions from what the eyes observe. These illusions include paradoxical and impossible objects such as Penrose triangle and impossible staircase, and hallucinations as well.
Optical illusions are a wonderful entertainment for people. What is more, they help us to have a look at our world from another side. In result your mind will become flexible that will certainly assist you in future. |
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