Douglas Gentile, Iowa State University (IMAGE) Iowa State University Caption Douglas Gentile is an associate professor of psychology and director of the Media Research Lab at Iowa State University. Credit Bob Elbert, Iowa State University News Service 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.