Maria Dietrich (IMAGE) University of Missouri-Columbia Caption Maria Dietrich is the director of the Vocal Control and Vocal Well-Being Lab at MU. She recently found that there is more to vocal issues than just feeling nervous and that stress-induced brain activations might be to blame. Credit MU News Bureau 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.