Ultrasound Guides Tongue to Pronounce (IMAGE) New York University Caption Using ultrasound technology to visualize the tongue's shape and movement can help children with difficulty pronouncing "r" sounds, according to research led by NYU Steinhardt assistant professor Tara McAllister Byun. Credit Ramsay de Give / NYU Steinhardt Usage Restrictions Please contact Rachel Harrison for permission to reproduce image. 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.