prosthesis

Flying to space won’t be easy—and flying to space with a prosthesis, something no one has done before, will make things more challenging still.

Most amputations sever the muscle pairs that control joints such as the elbow or ankle, disrupting the sensory feedback about the limb’s position in space that would help patients control a prosthesis.

Other researchers also are testing ways to add tactile feedback to prostheses.

Even after the people had used the prosthesis for more than a year, the mismatch didn’t improve.

Already, implanted electrodes can record signals from the movement areas of the brain, allowing people to control robotic prostheses.