The company which has implanted dozens of chips in people's brains

It sounds like the stuff of science fiction - but a company in Utah has already implanted brain chips in dozens of patients. Blackrock Neurotech, based in Salt Lake City, has the grand ambition of curing physical paralysis, blindness, deafness and depression. The chip -- known as NeuroPort Array -- allow people to control robotic arms and wheelchairs, play video games and even feel sensations. It works by using nearly 100 microneedles that attach to the brain and read electrical signals produced by someone's thoughts. More than three dozen people have so far received it.