"Bionic" Arms Give Amputees Freedom To Move

This is pretty sweet. A women named Mitchell is the first woman to be fitted with this "bionic" arm. She lost her arm two years ago in an accident. The arm re-directs severed nerves to send her brain's signals to the motors in her prosthetic arm. All she has to do is think about what she wants to do and the motors in the arm complete the action. This is possible because nerves were placed in her chest where they could re-grow close to the skin. Electrodes were then placed on top of these nerves. So they fire as normally and the electrodes pick up the signal and move the motors. A draw back is the size of this arm. It's weighs 11 pounds and some of the motors can be seen. A step in the right direction. http://articles.news.aol.com/news/_a/bionic-arms-give-amputees-freedom-to/20060914003609990003?ncid=NWS00010000000001