Listen to a psychologist tell a story

Chapter 1

Chapter 1 If there were only three days of light in life

——Let the feeling accompany you to know the world

Chapter 1 Section 1 Did he really see a ghost?

There are no ghosts in the world, he was just deceived by his own eyes. ? ?

In Harvard Medical School, Rand, a student from the countryside, spent several nights dissecting corpses in the anatomy laboratory in order to complete the dissection task assigned by his teacher. ?
One night when he was concentrating on observing the specimens, he suddenly saw a "ghost" with disheveled hair and a hideous face swaying around on the opposite wall. ?
He was almost paralyzed by fright, and since then he never dared to go out at night or observe specimens. ?
When he saw his classmates, he would say that the laboratory was haunted, and everyone would laugh at him every time, saying that he was just a ghost—a coward! ?
Mind walk?

When a Harvard psychology professor heard his medical school colleagues tell him about it, he didn't take it as a joke, but told it to his own students and explained it. ?
In fact, this situation is a normal physiological and psychological phenomenon of people, and it is a situation that everyone with normal vision will encounter. ?
If you stare at a small colored object (such as a button) against a light-colored background for about 10 seconds, and then look at a piece of white paper, you will see a dim image of complementary colors (such as red-green, yellow-blue). is called a negative afterimage. ?
Perhaps the explanation of this story will give you a hint that sometimes, some of your feelings will confuse your judgment and cause you to have fear or other psychology.In fact, this is not necessary. ?
(End of this chapter)