Chip implanted in paralyzed man's brain helps him regain use of his hand

Ian Burkhart lost all sensation in his hands and legs after a freak swimming accident five years ago. Today, doctors report that a chip in his brain has let him regain some control of his hand. The 24-year-old man has "regained control over his right hand and fingers, using technology that transmits his thoughts directly to his hand muscles and bypasses his spinal injury."

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