Students who can't lie.
There is a story circulating in the west that a gambler cheated a banker: a clever gambler bet a small sum of money first and paid close attention to the banker's reaction. If you win the bet, the banker's pupil will suddenly expand, so the gambler's partner will increase the price significantly. The banker lost money many times and still didn't know how the secret was leaked. Whether this story is true or not shows that people have long noticed the relationship between psychological activities and primary school students. Scholars in ancient and modern times like to describe people's feelings with their eyes, such as smiling eyes and greedy eyes, which all reflect the relationship between eyes and mind.
When people are in the embryo, the eyes are the extension of the brain, and then with the development and differentiation, the eyes move out of the cranial cavity. However, in fact, the eye is still a mirror of the brain. Doctors often diagnose brain diseases by peeping at the changes of fundus through the small window of pupil. Fundus atherosclerosis means cerebral arteriosclerosis, and fundus optic nerve swelling indicates brain cell edema, which indirectly indicates that there is a tumor in the brain.
Pupil is also a sensitive index of vital function. We know that when the light is dazzling, the pupil will automatically shrink, and when it is dark, it will open again. The cat's pupil is the easiest to observe: at noon, the cat's pupil is a line, and at night, it is round and green. The pupil's response to light is controlled by the brain stem, which also manages the activities of the most important life functions, such as respiration, circulation and blood pressure. If the pupil's response to light becomes slow or disappears, it means that the brain stem function is seriously damaged, which also means that life function is about to stop and death is coming. Therefore, when consulting critically ill patients, doctors should always open their eyes and look at their pupils to judge whether their vital functions are threatened.
The diameter of the pupil is between 2-8 mm, and it usually keeps a moderate size. Coma patients, with the aggravation of the degree of loss of consciousness, the pupils will gradually expand, which is the end of life and a symbol of death.
Scientific research shows that pupil changes can reflect some psychological activities in the inner world. When there is a strong interest or motivation, the pupil will expand rapidly. It is said that jewelry merchants in ancient Persia will charge the price according to the size of customers' pupils when selling jewelry. If shiny diamond rings can dilate customers' pupils, businesses will charge more.
The delicious food presented to us will also dilate people's pupils, and hungry people will dilate even more. If you add the action of swallowing saliva, it will constitute the kind of "gluttony" that people often say. Interestingly, psychologists have also found that besides visual stimuli, other senses can also cause changes in pupils. For example, when people listen to their favorite music or taste delicious drinks with their tongues, their pupils will also dilate. In addition, in the state of terror, tension, anger, love, pain, etc. , the pupil will be enlarged; It will shrink when you are disgusted, tired and upset. All these indicate that pupil activity is closely related to psychological activity.
Pupils are surprisingly sensitive to interest. Someone showed two beautiful portraits to the subjects. The two photos are exactly the same, but one of them has a slight flaw. The viewer can't tell the difference between two photos, but the pupil's response to the perfect photo is obvious.
I borrowed it. I hope it helps you.