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Chip, Implanted in Brain, Helps Paralyzed Man Regain Control of Hand

1790Five years ago, a college freshman named Ian Burkhart dived into a wave at a beach off the Outer Banks in North Carolina and, in a freak accident, broke his neck on the sandy floor, permanently losing the feeling in his hands and legs.

On Wednesday, doctors reported that Mr. Burkhart, 24, had regained control over his right hand and fingers, using technology that transmits his thoughts directly to his hand muscles and bypasses his spinal injury. The doctors’ study, published by the journal Nature, is the first account of limb reanimation, as it is known, in a person with quadriplegia.

Doctors implanted a chip in Mr. Burkhart’s brain two years ago. Seated in a lab with the implant connected through a computer to a sleeve on his arm, he was able to learn by repetition and continual practice to pour from a bottle, and to pick up a stirring straw and stir. He was even able to play a guitar video game.

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