Media: students wear a headband to monitor wandering, which is to put science on the ground

 Media: students wear a headband to monitor wandering, which is to put science on the ground

With the development of science and technology and the application of scientific and technological achievements, todays children enjoy the treatment of Monkey King, the great sage of heaven, and are put on the tight hoop. At a primary school in Jinhua, Zhejiang Province, children take classes with head rings (tight hoops) to surprise the world.

This tight hoop is a brain computer interface head ring, which can detect brain waves, judge whether students concentrate in class and homework, and grade the concentration of students. At the same time, the scores will be transmitted to the teachers computer in real time, and will also be sent to the parent group like the ranking of test scores.

We cant help but say that the children are really hard-working and well paid, but can the tight hoop they wear make them worry? The answer may not be the same as that of people who make students wear tight hoops.

u25b2 picture from video screenshot

Is it reliable to put on the head ring of brain computer interface for students?

GuanShiYin lied to monkey king to wear tight hoop so that monk Tang could restrain the unruly monkey who is not afraid of the king and Laozi. However, to make students wear tight hoop deviates from the law and science from common sense. Are children not naughty and naughty, or even naughty? Even if the girl who looks like a good girl doesnt make any small moves, her attention in class is not always focused, but sometimes distracted, which is determined by human brain function and mental state.

According to the traditional theory of brain and psychological cognition, people of different ages have great differences in the time of attention concentration. Children usually have 10-15 minutes, primary school children can reach 30-40 minutes, and teenagers only have about 50 minutes. So, the current school classroom (from primary school to University) is 45-50 minutes.

However, this is only a representation, because in these 45 minutes, about 20% - 50% of the time the brain is in the mind. This kind of absent-minded situation is also known as daydreaming by psychologists. No matter who is working, learning or carrying out an activity, there are daydreams with different degrees and times, but this does not prevent some people from carrying out and completing work mechanically.

Everyone has the problem of inattention, but this kind of inattention is a normal mechanism of human brain. Without this mechanism, the brain may not be easy to concentrate. Therefore, if we put on the tight hoop, almost all children will be detected to be distracted, inattentive, and put on the hat of not serious study, not listening to class.

Whats more, the principle of brain wave detection of the head ring of brain computer interface is not reliable. The basic principle of tight hoop is electroencephalogram detection (EEG) technology. Through the detected brain wave morphology, we can understand some diseases and normal physiological states, such as theta wave is more significant in the mentally ill and the depressed, while the normal brain wave is alpha wave, while the delta wave is available in the infant, the intellectual immaturity, the adult in the state of extreme fatigue and lethargy or anesthesia Recorded.

Even if this kind of brain computer interface can detect whether the human brain is focused, there are many false images, because the test of EEG technology is easily affected by the environment and the factors of the subjects, such as wearing tight hoop people will feel unaccustomed, produce itching pain, then fidgety and uneasy, and when the EEG is not properly set, the communication condition of the electrode is not good, and the signal transmission will be distorted u3002

Moreover, brain computer interface (BCI) can only measure the superposition potential of a large number of nerve cell electrical activities, and cannot detect more specific nerve signals, because its spatial resolution is very low. The bioelectric activity of tens of billions of cells in the brain cant be detected only by a few electrodes on the tight hoop on the head.

Using the electrodes on the tight hoop to test the brains electrical signal is like using a few or dozens of pixel camera in a dust storm to judge a persons appearance by taking a shadow, which is even worse than seeing flowers in the fog. Therefore, a large number of misdiagnoses will occur when children are put on the tight hoop test attention.

u25b2 picture from video screenshot

Put on the tight hoop and the child will be able to focus?

Even if tight hoop can get some correct diagnosis, it can determine whether some children are not focused, so what? Can teachers and parents, like Guanyin and Tang Seng, recite the tight hoop mantra to make children look for teeth in pain, repent and change their minds? At best, the teacher and the parents criticized and asked the children to pay attention in class.

However, the requirement to focus is largely a goal deviation. The real goal is childrens academic performance. Many children can learn and understand the important content of a class or a class through normal brain regulation mechanism even if they are not focused on the surface. The exam will also get good results. Therefore, to let children wear tight hoop to detect and evaluate their attention is actually the deviation of education goal evaluation.

On the other hand, has the childs dignity been taken care of and the childs normal physiological needs been followed? Even for adults with more self-control than children, if they are required to wear a tight hoop job, let alone make them feel ashamed, that is, their physical discomfort will also make them extremely impatient. I wish I could tear off this redundant device and let my brain and body return to freedom. Whats more, children with less self-control than adults are more likely to make extreme behaviors, at least It makes the test of tight hoop extremely inaccurate.

As for the effect of wearing the tight hoop, some teachers say that after students wear the tight hoop, their voice will be louder than usual when they answer my questions in class, which can effectively improve their performance; some students also say that they can listen carefully in class after wearing the tight hoop, and their homework is basically all right. However, the results without large-scale randomized double-blind control study can only be said to be a feeling, and even Cosplays results are not credible.

Whats more terrible is the hearts of parents all over the world. For this kind of tight hoop that needs 3500 yuan, some parents say that if it can achieve long-term effect and ensure safety, it is a completely willing price. Because concentration training starts with dolls. However, many parents misunderstood at the beginning. This kind of tight hoop is not to train childrens attention, but to test whether children have attention, and the test results are not reliable.

Psychologists put forward some methods to improve and train peoples attention, which are also based on peoples brain function and basic psychological cognition. As for the method of wearing tight hoop, it has not been scientifically confirmed, nor is it a method of training and improving attention, just to test whether attention is focused. And even if it can detect concentration, it has to accept legal and ethical norms, including violations of childrens privacy and freedom.


1. The brain computer interface head that can monitor the concentration is looped into the campus. Do you agree as a parent? October 30, 2019, interface news

2. Zhejiang primary school students wear 3500 yuan gold hoop: real-time monitoring of class wandering, automatic reporting to teachers and parents, October 31, 2019, observer network

(function() {(window. Slotbydup = window. Slotbydup| []). Push ({ID: 6374560, container: ssp_, size: 300250, display: inlay fix, async: true});)));); (source of this paper: Beijing News author: Zhang tiankan editor in charge: Du Shuo)