3-D Tongue Image (IMAGE) University of Texas at Dallas Caption Technology recently allowed researchers to switch from 2-D to the Opti-Speech technology, which shows the 3-D images of the tongue. Credit University of Texas at Dallas 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.