Brain-computer interface takes baby steps forward

Wang Zhuang, a member of the neural engineering team at Tianjin University, is operating the additional "sixth finger" device. Fudan University in Shanghai has set up a Neuromodulation and Brain-Machine Interface Center on Aug 3, just a day after Elon Musk said that Neuralink had implanted a brain-computer interface into a second patient. Medical science is used to detect and interpret the brain's signals, material science to produce wires that won't harm the part of the brain where they are implanted, chip science to minimize the size of the implanted device and the heat it generates, and computing science to decode the brain's signals and code corresponding signals to send back. The rich research resources have laid a sound basis for the domestic research team to take steps forward in brain-computer interface technology, which has been developing from the stage of just reading content emanating from human brains to writing desired content to send back to the brain; the latter helps the visually impaired to "see" the world by receiving signals that directly go to their brains. Now an emerging hot research topic is an interface based on the former two, so that a patient with the brain-computer interface implant can control things by merely thinking about them.