Tongue Drive System (2 of 3) (IMAGE) Georgia Institute of Technology Research News Caption Georgia Tech Electrical and Computer Engineering graduate student Xueliang Huo moves his tongue to direct the Tongue Drive system to move the powered wheelchair in a different direction. Credit Georgia Tech Photo: Gary Meek 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.