Wired News: A Question of Mind Over Matter: "MIT assistant professor Hugh Herr is an advanced prosthetics researcher and a bilateral leg amputee, two conditions that have allowed him the rare experience of testing his gadgets on himself.

'You know how it feels when you're at the airport and you hit the moving walkway? It's kind of like that,' he said of a new foot-ankle system he's developing with colleagues at MIT, Brown University and the VA Medical Center in Providence, Rhode Island.

The so-called biohybrid system sports a power pack and computer all contained within the prosthesis and uses sensors to allow more realistic movements than static, strap-on devices. The first systems have noninvasive sensors attached to the prostheses. In about two years scientists will implant sensors into study volunteers' nervous systems, Herr said."