Study (IMAGE) University of Missouri-Columbia Caption In the study, Luo and Choi manipulated puppet characters so they interacted in positive and negative ways and found that the babies were able to comprehend what was happening. Credit You-jung Choi 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.