| Our world is full of enigmatic things. Some of them can't be described even by scientific experts. Others represent a range of illusions. World of illusions is wide, few people possess good knowledge about it. Every person 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's not. There is a wide range of other similar optical illusions. Observing various sorts of optical illusions is a good way of spending time for people with broad mind.
An optical illusion is characterized by visually perceived images that are different from object reality. Our eyes gather information that is processed in mind. In result we obtain a percept that does not match to what is really displayed. The sorts of the illusions differ according to the object that creates this optical illusion. For example, literal optical illusions form images that differ from the objects that formulate them. You have possibly observed the pictures where at first you observe a certain object, but when you look more attentively you realize that this picture is created with the use of other objects. An example of such literal optical illusion is a vase formed by two faces. Such pictures are usually called ambiguous images. It's from time to time really difficult to notice another picture on the same image.
Physiological optical illusions have certain effect on our eyes and brain and as a result we get an illusion of different parameters – brightness, color, movement, size. For instance, there are pictures where some objects seem to be of different color or size, when in reality they are absolutely the same. Muller-Lyer illusion with arrows is an excellent example of this type of visual illusions. Cognitive optical illusions make our brain made incorrect conclusions from what the eyes see. These illusions include paradoxical and impossible things like Penrose triangle and impossible staircase, and hallucinations as well.
Optical illusions represent a wonderful amusement for people. Moreover, they help us to have a look at our world from the other side. In result your mind will get flexible that will definitely assist you in future. |
