Sometimes after reading for a long time, a word becomes useless.

Does anyone have this situation? Neurons in the brain interpret things that have been seen for a long time as imaginary things by default. For example, seeing clouds or stains on the wall as a human face means that the "face" neurons in the brain react and unconsciously recognize them as human faces. In addition, there are Chinese character neurons in the brain that are similar to facial neurons. When looking at a Chinese character for a long time, the Chinese character neurons will become tired, which will affect the sensory functions. At this time, people will also doubt the shape of familiar characters and feel that they are not familiar or even unrecognizable. This is Gestalt collapse. Have you ever had a time when a word became a word? In fact, this is a phenomenon called Gestalt collapse.