Monkeys Move Arms With Mind

In a study led by Duke researchers, monkeys were taught to use their minds to move the arms of a virtual monkey.  With these findings it is possible for some sort of prosthetic that moves where the user "thinks" they should go.  The monkeys were trained in a virtual environment where they could see the arms of the "fake" monkey.
 
http://www.sciencedaily.com/releases/2013/11/131106141225.htm