DARPA just gave a paralysed man back the sense of touch

DARPA just gave a paralysed man back the sense of touch through the use of a brain implant.

It’s a revolutionary breakthrough for the Pentagon’s research and development shop, which hooked up a human subject named Nathan Copeland to a robotic arm controlled by a brain implant that could send information back and forth.

Copeland was paralysed from the chest down after a 2004 car accident. Nearly ten years later, he volunteered for a clinical trial that provided him the feeling “as if his own hand were being touched,” he reported.

In order to make that feeling happen, DARPA researchers from the University of Pittsburgh implanted four microelectrode arrays onto the areas of Copeland’s brain that dealt with motor functions and the sense of feeling in the fingers and palm. Then they hooked wires up to a robotic arm and tested, which resulted in nearly 100 per cent accuracy.

“At one point, instead of pressing one finger, the team decided to press two without telling him,” Dr. Justin Sanchez, the director of DARPA’s Biological Technologies Office, said in a statement. “He responded in jest asking whether somebody was trying to play a trick on him. That is when we knew that the feelings he was perceiving through the robotic hand were near-natural.”

The latest advance is just one of many in DARPA’s Revolutionising Prosthetics program, an initiative that started in 2006. The agency previously showed off a super-powerful prosthetic arm that looks, feels, and acts just like a real human arm.

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