Key points from article :
BCI can restore movement and sense of touch in the hand of a man with severe spinal cord injury.
Implant records brain activity and then decode and process that brain activity into movements.
Feeds these movements to bands around forearm to electrically activate necessary muscles.
Detects different levels of touch and adjust the strength of hand movements.
Can play the video game Guitar Hero, swipe a credit card and do about 20 different hand grips.
Research by Battelle Memorial Institute in the US, published in the journal Cell.
