'Brain wi-fi' technology gives hope to paralysed patients

Using microchip technology to overcome paralysis is a fast-developing field of science. Now scientists in Switzerland say they've used an implant that beams instructions from the brain to the body to help paralysed monkeys move again. How does it work? Dr Jocelyn Bloch, a neurosurgeon from Lausanne University Hospital, is one of the researchers.

(Photo: An artist's rendition of the brain-spine interface on a monkey. Credit: Jemere Ruby)