This mind-controlled limb can move individual fingers

The beckoning finger of this metal arm marks the first time a human mind has wiggled individual digits, according to researchers at Johns Hopkins University. 
"We believe this is the first time a person using a mind-controlled prosthesis has immediately performed individual digit movements without extensive training," said Nathan Crone, senior author of the study, which was published in the Journal of Neural Engineering.By: Emily Reynolds, Continue reading...