john donoghue, talking about implants, like i have the implant in my hand. he puts 'em in your brain. (laughs) john led a pioneering team that created one of the first brain computer interface devices. it's called braingate. - we actually peer into the brain and look at thinking about movement. when we first put an electrode in the brain, we didn't know whether somebody could control anything. - [angel] to decipher the connection between thought and tion, john implanted the braingate device in matt nagle, a quadriplegic. matt was able to control 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 electroeephalogram, or eeg. the device measures the brais electric