Wired News - Mind Control:
"John Donoghue, head of neuroscience at Brown University and the founder of Cyberkinetics, eventually wants to hook BrainGate up to stimulators that can activate muscle tissue, bypassing a damaged nervous system entirely. In theory, once you can control a computer cursor, you can do anything from drawing circles to piloting a battleship. With enough computational power, 'everything else is just engineering,' says Gerhard Friehs, the neurosurgeon from Brown who implanted Nagle's device."
