Robotic Drumming Prosthesis (2 of 3) (IMAGE) Georgia Institute of Technology Caption Jason Barnes can now flex his muscles to send signals to a computer, which tightens or loosens his drumstick. Credit Rob Felt/Georgia Tech Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.