About Miguel Nicolelis:
Miguel Ângelo Laporta Nicolelis is a Brazilian scientist and physician, best known for his pioneering work in "reading monkey thought". He and his colleagues at Duke University implanted electrode arrays into a monkey's brain that were able to detect the monkey's motor intent and thus able to control reaching and grasping movements performed by a robotic arm.[citation needed] This was possible by decoding signals of hundreds of neurons recorded in volitional areas of the cerebral cortex while the monkey played with a hand-held joystick to move a shape in a video game. These signals were sent to the robot arm, which then mimicked the monkey's movements and thus controlled the game. After a while the monkey realised that thinking about moving the shape was enough and it no longer needed to move the joystick. So it let go of the joystick and controlled the game purely through thought.[citation needed] A system in which brain signals directly control an artificial actuator is commonly referred to as brain-machine interface or brain-computer interface.
Eventually, brain implants will become as common as heart implants. I have no doubt about that.
Miguel Nicolelis