The company BrainCo has been testing their headband for tracking brain activity in chines schools. The idea is to give the teachers a view into the actual activity of the students during classes. Other say that it is mostly parents that want more control in school and pointing to privacy issues. Maybe the band can detect mental activity, but how to know what the student concentrate on? Might be anything. However, as personal assistance, elderly could use this tool to keep track on their abilities to keep focus and better understand their cognitive development.

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