Friday, October 14, 2016

A prosthetic arm that can feel.

It's hard to see but the right arm of Nathan Copeland, the student in the wheelchair, is a prosthesis. He was able to feel Obama's handshake. He owes it to brain surgery. The prosthetic arm delivers currents to the electrodes that stimulate his brain to create sensations of touch that feel as if they are coming from his own paralyzed hand.

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