| Our modern world is full of enigmatic things. Some of them can't be described even by scientists. Others constitute a group of illusions. Illusion world is great, not many people possess good knowledge about it. Everybody has noticed that when a spoon is dropped into a glass of water it seems to be broken, although in reality it's not. There is a wide range of other similar optical illusions. Observing different kinds of optical illusions is a great pastime for people with broad mind.
Optical illusions are characterized by visually perceived images that are different from what they are in object reality. An eye gathers information that is processed in mind. As a result we get a percept that does not match to what is really displayed. The kinds of the visual illusions differ according to the object that forms this optical illusion. For instance, literal optical illusions create images that are really different from the objects that make them. You have possibly observed the pictures where at the first sight you notice a certain object, but when you look attentively you realize that this picture is formed using other objects. An example of such literal optical illusion is a figure-grounded vase. These pictures are usually named ambiguous pictures. It is sometimes really hard to see another picture on the same image.
Physiological illusions have certain effect on our brain and eyes and as a result we have an illusion of different parameters – brightness, color, size, movement. For example, there are pictures where some things seem to be of different color or size, 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 optical illusions make our brain made incorrect conclusions from what our eyes see. These are paradoxical and impossible objects like Penrose triangle and impossible stairs, and hallucinations as well.
Visual illusions are an excellent entertainment for people. Furthermore, they help us to have a look at our world from the other side. As a result our mind will become more flexible that will certainly assist you in life. |
