As the saying goes, "I think about it day and night." The root of dreams is actually the activity of the brain. We know that when people are awake, the brain can constantly respond to external stimuli. In the evening, when people are tired, they go to bed. In most sleep processes, brain waves, eye movements, etc. Just like when awake, only the body muscles are in a state of inhibition. At this time, they have experienced the day.
The content of dreaming is often related to the stimulation during the day or during sleep. If you think too much during the day, you will dream at night, or even if you have never thought about someone or something, because you have experienced it before, some brain cells will "recall" the past when you sleep at night, so you will dream.
When sleeping, external stimuli will make the brain react incorrectly, thus having all kinds of weird dreams. In addition, the stimulation and pathological changes of various organs in the body will also cause similar scenes in dreams, such as urgent defecation and dreaming that the toilet can't be found anywhere.
Dreaming is a physiological phenomenon. Normal dreaming will not affect your health, but if you often have nightmares or strange dreams that affect your sleep, you should see a doctor and treat them in time. After you fall asleep, a small number of brain cells are still active, which is the basis of dreaming. Why do people dream and what happens if they don't dream?
Normal dream activity is one of the important factors to ensure the normal vitality of the body.
Pavlov said: "Dreams are traces of excitement, mostly old traces of excitement." Scientists have done some experiments to stop people from dreaming. That is, when the sleeper has a dream brain wave, he will wake it up immediately to stop his dream from continuing, and so on. The results show that deprivation of dreams will lead to a series of physiological abnormalities such as blood pressure, pulse, body temperature and skin electrical response ability, and the function of autonomic nervous system will be weakened. At the same time, it will also cause a series of adverse psychological reactions, such as anxiety, tension, irritability, perceptual hallucinations, memory disorders, disorientation and so on. When a person's eyes turn, it means that the sleeping person is dreaming. Now people study the physiology of dreams, and measure the number and length of dreams by the number of times and the time of eye movement. However, some people say that people's sleep is always in a rhythmic cycle. That is, in the alternation of REM sleep and slow-wave sleep. Slow-wave sleep is a quiet sleep state, and in REM sleep, people's eyes will rotate rapidly because of irregular breathing and heart rhythm. Obviously, normal dream activity is one of the important factors to ensure the normal vitality of the body.
Dreams are a way to coordinate the balance of human psychological world.
Because people take the right hemisphere as the leading activity in dreams and the left hemisphere as the leading activity after awakening, during the 24-hour day and night activities of the body, the dynamic balance between nerve regulation and mental activity can be achieved by alternately waking up and dreaming. Therefore, dreams are a way to balance people's psychological world, especially for people's attention, emotions and cognitive activities. Dreamless sleep is not only of poor quality, but also a sign of brain injury or disease.
Dream exploration
Recent research results also confirm this view, that is, dreams are the result of the brain's regulatory center balancing various functions of the body, and dreams are the need for the healthy development of the brain and maintaining normal thinking. If the brain's regulatory center is damaged, dreams will not form, or only some incomplete dream fragments will appear. If you sleep for a long time without dreams, people should be vigilant. Of course, if you have nightmares for a long time, it is often a sign of weakness or some diseases.
More rigorous scientific research on dreaming began in17th century. Robert, an expert on dreams, believes that people are exposed to countless information intentionally or unintentionally in their daily activities, and they must release some of these information through dreaming. This is the famous theory of "dreaming and forgetting", which began to be popular again in the1980s one hundred years later. Freud's theory of psychological dream interpretation appeared again. Freud believed that people constantly have desires and desires, which are expressed and released in dreams through various disguises and deformations, so that they will not break into people's consciousness and wake people up. In other words, dreams can help people eliminate those desires and desires that are unacceptable to the conscious system, and they are the guardians of sleep protection.
Freud's theory was popular from the beginning of this century to the 1960s. Later, the study of dreams in the world slowly left the field of psychology and entered the biological laboratory. Since then, dreaming has been regarded as a biological phenomenon. Michel Jouvet, a neurobiologist at the Dream Research Laboratory in Lyon, France, is an internationally renowned expert in dream research. Jouvet defined dreaming as "parasomnia" in 1959. He found through EEG test that people have dreamy sleep for 5-20 minutes every 90 minutes, and the signals reflected on the instrument screen are different, which show the changes of brain activity during sleep. If the radio wave of EEG shows that the subject is awakened during dreamless sleep, he will say that there is no dream; If you wake him when he is asleep, he will remember the dream he just had. In addition, the researchers used X-ray tomography to find that the image of the brain in the dream sleep stage was close to that when he was awake.
Interestingly, the researchers found that dreaming is not unique to human beings, and birds and all mammals also dream. In the late 1970s, a scientist discovered through experiments on mice that dreamy sleep is also related to memory. Dreamy mice can remember experiences better than mice deprived of dreamy sleep, but this research result is not applicable to humans, because doctors used an inhibitor called monoamine oxidase when treating patients with mental depression, which completely canceled people's dreamy sleep.
Wei Ru, a French expert on dreams, believes that dreams are determined by genetic factors. He compared the letters and numbers emitted by mice in their sleep and found that mice with the same genetic system had similar letters and numbers. A recent experiment by Bulga, a researcher at the University of Colorado in the United States, confirmed this theory. Bulga studied identical twins and found that twins who were raised by two different families in different places after birth actually had similar dream experiences, which proved that human dream performance is genetic memory.
In addition, there is a recent report on dreaming research in the just published American Science Weekly. The author of the report, a cooperative team of the Washington Institute of Neuroscience and the National Institute of Health in Bocaistar, Maryland, tested more than a dozen people who accepted the experiment with a high-performance neurotomography camera and found that the blood circulation in this specific area of their cerebral cortex was abnormally accelerated during the dream sleep stage. The researchers found that the visual nervous system responsible for seeing dream scenes and external visual scenes in the brain originally existed independently. According to the report, after seeing that the internal visual system of dreams has been proved to exist independently, it can explain why we have inflated emotions in dreams and why we can accept those unreasonable eccentric plots and chaotic concepts of time and space.
Take it!