Babies Benefit from 'Um's' and 'Uh's (IMAGE) University of Rochester Caption Jackson Coles, 2, of Webster, N.Y., sitting in the lap of his mother, Christy, watches objects on a special monitor designed to track eye movement during a research study at the University of Rochester's Baby Lab. The study found babies use “um’s” and “uh’s” to help them learn new words. Credit J. Adam Fenster, University of Rochester Usage Restrictions Please include photo credit 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.