The so-called optical illusion is that the picture we see through our eyes is inconsistent with the actual situation. Because we humans have to go through many organs and tissues from receiving the reflection of light from objects to the final reaction of the brain. The first step of visual processing is the projection of visual information produced by objects in the cerebral cortex, which is relatively real; The second step is to integrate and analyze all the information projected on the cerebral cortex, and this step begins to appear deviation. The information conveyed and judged by the brain is not direct. In other words, what you think you see is what your brain wants you to see.
For example, in order to make others look small, girls often have two operations: one is to hide behind as much as possible, because everyone knows the truth that the near is big and the far is small, and the farther back the position, the smaller the face; Second, putting a big reference next to your face, such as putting a big plate next to your face, will make your face look small. These are common examples of using optical illusions in life.
The above example can also illustrate a problem. Many optical illusions are caused by different choices of reference objects. For example, a peanut placed next to an ant will make people feel like a monster, but it can be ignored when placed next to a tiger. The same peanut, with different references next to it, gives people a different feeling, thus creating an illusion. There are also famous artists from all over China? Strange slope? Phenomenon, why can an object roll from a low place to a high place? It is also because the angle of roadside vegetation is unusual, which gives people an illusion.
Illusion is a kind of situation that human beings often encounter, and it is another reaction to the real situation. Hallucinations are not mistakes. Proper use of illusion can add a lot of fun to life, and we can also use optical illusion to dress and make up, making life better.