 New hope for those who've lost a limb. Scientists making new strides in prosthetic limbs and how they interact with the brain. When you see someone walking with an artificial limb, they don't have full neural control over it. Instead, they're likely using a robotic controller to move the prosthesis at a gait that's been pre-programmed into it. But researchers at MIT are trying a new procedure that through surgical amputation reconnects muscles to the body's own nervous system. The result...