Jack Fletcher, University of Houston (IMAGE) University of Houston Caption This is Jack Fletcher, Hugh Roy and Lillie Cranz Cullen Distinguished Professor, department of psychology, University of Houston and principal investigator for the grant, works with a student at the Texas Center for Learning Disabilities. Credit Courtesy of University of Houston 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.