Dr. William M. Meil is a Full Professor in the Psychology Department at Indiana University of Pennsylvania. He previously was a postdoctoral Fellow at The Northeastern Ohio Universities Colleges of Medicine and Pharmacy in Rootstown, Ohio. He was awarded an MA degree in Psychology from The University of Hartford in West Hartford, Connecticut and PhD in Psychology from Washington State University in Pullman, Washington. His research has spanned human and laboratory animal studies investigating the neurobiological basis of substance abuse and addiction. The current focus of his research is the examination of ecologically valid measures of executive function as predictors of substance abuse and recovery from addiction. He is the author of many peer-reviewed book chapters and journal articles.