How Do Brain Computer Interfaces Work?

Brain computer inter faces can read electrical signals in the brain and translate those signals, vire and algara, into computer actions like moving a curser or typing. This week researcher frank willett from stamford university demonstrated a faster way to use b c is for writing. They recruited a volunteer who couldn't move his hand due to paralysis, and then asked him to imagine writing with a pen. And after a while, he was able to type text on a computer screen with impressive speed.