angel] to decipher the connection between thought anaction, john implanted the braingate device in matt nagle, a quadriplegic. matt was able to control a computer cursor directly with his mind. - so the whole idea of a brain computer interface is to help a person who is paralyzed to be able to move again, or be able to communicate or interact with the world. - open. - [angel] john achievethis breakthrough by using computers to read the brain signals insideatt's skull. the first technology to do this was developed in the 1920s by german psychiatrist, hans berger. he invented an instrument he called the electrncephalogram, or eeg. the device measures the brn's electral activity through the skul and represents it as complicated linesn a graph. however, decoding these brainwave patterns is an immense challenge, especially when the goal is to control complex movement. - imagine that those signals coming from your hand to control that were not coming from your hand, but from your brain. and now you don't know what makes your brain cells active, so how can you relate what your brain cells are doing

angel] to decipher the connection between thought and tion, john implanted the braingate device in matt nagle, a quadriplegic.