Bionic breakthrough: Prosthetic leg is controlled by human thoughts

Scientists have developed a prosthetic leg controlled by the human brain which could make it easier for amputees to get up and down stairs. The ground-breaking new device allows patients to directly control their prosthetic using their thoughts. The device records signals from surgically preserved muscles which are carefully monitored and converted into controls for a robotic ankle. In a 'groundbreaking' trial of 14 amputees, scientists at MIT found that the leg created a more natural gate, improved stability on uneven terrain and a 41 per cent increase in speed....