Joan L. Luby, MD, and child (IMAGE) Washington University School of Medicine Caption Child psychiatrist Joan L. Luby, MD (left), directs Washington University's Early Emotional Development Program. In a study of young children, Luby and first author Ji Su Hong, MD, identified several types of misbehavior that may signal conduct disorder and that could predict problems for the children as they get older. Credit Robert Boston 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.