Electrodes in brain help "minimally concious people"

Beaten and left to die, his right brain smashed, one half of the brain severely damaged, the doctors said that if the man survived, he would be nothing more than a vegetable. For six years, he couldn't eat or speak, and only occasionally showed signs of conciousness, and tried to communicate by moving his eyes or a thumb. Doctors called his state "minimally conciousness".
Now he can eat, swallow and speak, thanks to electrodes planted in his brain.