CHICAGO - Researchers have come up with new technology that may one day help amputee war veterans: an artificial leg that reads brain signals, and it's already being tested out. The bionic leg that ...

A man who hasn’t been able to move or speak for years imagines picking up a cup and filling it with water. In response to the man’s thoughts, a robotic arm mounted on his wheelchair glides forward, ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American The following is an edited, updated version ...