'60 Minutes': Relationship between neurons and movement (Part 2)

'60 Minutes': Relationship between neurons and movement Using an implanted grid of electrodes inside the brain of monkey, Andrew Schwartz has found a relationship between how fast a neuron fires and the way the monkey moves its hand. Once they can understand the relationship, they can write a set of equations which will decode the monkey's intended hand movement in order to find a way to control a prosthetic device.