Per this article. From the same country that brought us the Wii and as a way to deal with Japan’s rapidly growth, the National Institute of Advanced Industrial Science and Technology (AIST) has recently unveiled a new robot designed for human interaction. The head is designed to inspire good feelings while offering physical therapy exercise and overall rehabilitation instruction thru examples.
For some video, you can go here (don’t count on being able to read the exercise descriptions but no doubt this link is teaching this patient how to scratch his back)
My sources tell me that the U.S. version has been in beta in physician offices and being billed “incident to” and can provide up to 8 minutes of therapeutic exercise before its batteries need recharging.