The brains of Chinese students are scanned to ensure that they concentrate in a controversial lawsuit

A controversial trial has used a hi-tech headband to track the brains of school children in the classroom to ensure that they concentrate.

Starter from Massachusetts, BrainCo says that Focus 1 headbands can help teachers identify students who need extra help.

It worked together with a Chinese school for the recent schoolchildren trial between 10 and 17 years old, and says that it also works with schools in the US, Mexico, Spain and Brazil.

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Starter from Massachusetts, BrainCo says Focus 1 headbands can help teachers identify students who need extra help

Starter from Massachusetts, BrainCo says Focus 1 headbands can help teachers identify students who need extra help

Starter from Massachusetts, BrainCo says Focus 1 headbands can help teachers identify students who need extra help

Teachers followed the attention of students with the help of an app that received information from the headbands.

The lights on the front of the devices also show different colors for different concentration levels, and highlight to staff if students are not paying attention.

With BrainCo's brainwave-detecting headbands and software platform, teachers can track student involvement and class attention as they arise & # 39 ;, says the company behind the headband.

HOW THE HEADBAND WORKS

The headbands use electroencephalography (EEG) sensors to detect brain activity when the wearer performs a task.

Usually the high frequency beta waves of the brain are raised when we are focused, and the low-frequency alpha and theta waves are more excited when we are relaxed.

The patterns vary from person to person, so Focus determines the maximum level of attention of each user through a series of mental tasks.

A high numerical score for the EEG signal suggests that a student is paying attention; a low score is interpreted as a distracted or unfocused student.

Neuroscientists, however, have questioned the effectiveness of the devices and the technology has also raised concerns about privacy.

The headbands use electroencephalography (EEG) sensors to detect brain activity when the wearer performs a task.

The devices were worn by 10,000 school children between 10 and 17 during a recent 21-day trial in China, according to New Scientist.

Students also played a smartphone game aimed at improving their concentration every day for 25 minutes at home.

BrainCo founder and chief executive Bicheng Han told New Scientist that the trial led to improved figures among participants, who also had to spend less time on homework.

The company has signed a deal to supply 20,000 headbands to a Chinese distributor.

Our goal with the first 20,000 devices, each of which is used by multiple students at schools, is to collect data from 1.2 million people, & # 39; Mr. Han.

However, the results of the Chinese study have not been published in an academic journal and scientists have expressed doubts about the technology.

The company also conducts a pilot study at a Boston high school to offer neurofeedback training with focus and relaxation to students to improve their learning efficiency and educational outcomes.

Russell Barkley, clinical professor of psychiatry at Virginia Commonwealth University, said that improvements are likely to be caused by the placebo effect.

It is because of parents' expectations, not because of the products, & # 39; he said.