Electrodes let him feel the difference between baseball and mandarin orange
LifeHand 2/Patrizia Tocci
A new prosthetic hand allows its wearer to feel a firm orange, a fluffy cotton ball and a hard piece of wood. The device, described in the February 5 Science Translational Medicine, restored a man’s sense of touch by stimulating nerves in his arm.
After Dennis Aabo Sørensen lost part of his left arm in a fireworks accident, researchers implanted electrodes onto his remaining arm nerves. When his prosthetic hand touched an object, these electrodes zapped Sørensen’s nerves, which then sent touch signals to his brain.