According to Han, the founder of BrainCo, in an interview with Interface News, the core technology of Rethinking is neural feedback training. Its essence is to use the plasticity of the human brain to train neurons in the brain like training muscles, thus prolonging the time of concentration and improving learning efficiency.
Sandra, a professor of psychiatry at UCLA, said that EEG technology is not mature enough to accurately consider important variables such as neural diversity. She said that this may mislead students' personal learning situation or needs. Students wearing headbands "may be very focused, but focus on the wrong things and you can get the same EEG measurement data."