Why do people sleepwalk?

< p > < / p > < p > 1. Hypnosis Theory when Mesmer first founded hypnosis, he found that hypnotized people tend to have sleepwalking symptoms. According to the classification criteria of modern hypnotic state, sleepwalking is the deepest state that hypnosis can cause. If the hypnotist induces the hypnotized person into a sleepwalking state and orders the hypnotized person to do some daily tasks, the hypnotized person can do well as normal. The principle of hypnosis is to create an excitation center in the center of the brain based on verbal cues while inhibiting activity in other parts of the brain. The same is true of sleepwalking, where some parts of the brain are excited while others are still sleeping. < / p > < p > Berhammru did an experiment on posthypnotic cues to prove that posthypnotic cues can make people experience hallucinations as realistic as reality. The experiment goes like this: < / p > < p > I hypnotized a smart, sensitive, but not hysterical woman, and I gave her a complicated post-hypnotic hint that allowed all her senses to participate. I hinted that she heard military music in the hospital courtyard and the soldiers came upstairs to enter the room. A musician got drunk talking nonsense and wanted to hug her. She slapped him twice and shouted for the nurse and the head nurse. Soon the nurse arrived and drove the drunk away. The above scenes are described to the hypnotized person during hypnosis. As a result, when she woke up, she felt the above scenes vividly. She had never had the same illusion before, and now she could not get rid of it. She looked back and asked the other patients if they had seen what had just happened. She can't tell reality from illusion. When it was all over, I told her, 'it's just an illusion that I implied to you.' She had just believed that the scene was an illusion, but she insisted that it was almost as realistic as reality and much more realistic than dreams. < / p > < p > when the patient wakes up from the hypnotic state, he forgets everything that happened during hypnosis. After a while, he experienced vivid hallucinations because of post-hypnotic cues. The experiment provides a model for sleepwalking: like hypnotized people, sleepwalkers simply perform an illusory rehearsal of a pre-designed script. Of course, this explanation is only an approximate metaphor. < / p > < p > 2. Psychoanalytic theory < / p > < p > Freud believes that sleepwalking is a manifestation of subconsciously repressed emotions at the right time. Indeed, sleepwalkers always have some painful experiences. In fact, sleepwalking can be explained intuitively with the theory of psychoanalysis: when the strength of the id accumulates to a certain extent, they break through the vigilance of the self on duty. In the face of the surging strength of the id, the self on duty can only escape regardless of it, and some of the self on duty are also caught as assistants, because people's words and deeds are the responsibility of the self. When the id fooled around for a while, it consumed a lot of energy, and the self-attendant immediately drove the id back to prison. In order to escape the punishment of the superego, the self-duty person doesn't report it. As a result, the sleepwalker wakes up ignorant of what has just happened. Although the above explanation is almost impossible, it is logically reasonable. < / p >