Neuralink says microchips could treat conditions such as paralysis and blindness

It's now seeking people with paralysis to test its device as part of a six-year study

Elon Musk's brain-chip firm will soon begin testing its controversial implants on people after receiving approval to recruit patients for the first human trials. 

Neuralink wants to treat conditions such as paralysis and blindness by linking brains to computers with the help of microchips.

However, its implants – which have been tested in monkeys – have sparked ethical concerns and drawn skepticism among neuroscientists and other experts.