Signs of Conduct Disorder in Preschoolers (AUDIO) Washington University School of Medicine Your browser does not support the audio element. Caption Every parent of small children knows that it's not unusual for preschoolers to have tantrums or to occasionally engage in other disruptive behavior. but child psychiatry researchers at Washington University School of Medicine in St. Louis have found that when those behaviors are too intense, a child may have conduct disorder, a serious problem linked to antisocial behavior in adults. Credit Washington University BioMed Radio 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.