Bionic brains become a reality
Devices to help paralysed patients work computers set to get even faster.
Five years ago, Matt Nagle was stabbed, leaving him paralysed in all four limbs. But since then, he has been able to use a modified computer to open e-mails, adjust the volume on his television, move a robotic arm and even play the computer game Pong. These powers came courtesy of a tiny square of electronic gadgetry implanted directly in his brain.
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