Whoa! Mind-Controlled Arm Lets Man Move Prosthetic Fingers

A new mind-controlled prosthetic arm was used to help a patient wiggle the device's fingers simply by thinking about it, and required very little training on the patient's part, according to a new study. "We believe this is the first time a person using a mind-controlled prosthesis has immediately performed individual digit movements without extensive training," study senior author Dr. Nathan Crone, a professor of neurology at the Johns Hopkins University School of Medicine, said in a statement.