The brain holds space for a missing limb, even years after it’s gone. For three women who underwent planned hand amputations, brain scans revealed remarkably durable maps of hand areas, lasting for ...

Bionic arms are beginning to tap into nerve signals that linger long after a limb is gone, turning the ghost of movement into real, controllable action. Instead of relying on crude muscle twitches or ...

For most people, sensing temperature is second nature. You grab a hot cup of coffee and instinctively pull back if it's too warm. You touch a cold glass of water and immediately register the chill.