Div. 28 President


David Festinger, PhDDavid Festinger, PhD, is a professor and the director of Substance Abuse Research and Education in the department of psychology at the Philadelphia College of Osteopathic Medicine. He is also a senior scientist at the Treatment Research Institute, Section on Law and Ethics Research and an adjunct professor of psychiatry at the University of Pennsylvania, School of Medicine. He holds a PhD in clinical psychology and master’s degrees in counseling and clinical health psychology, and is a licensed clinical psychologist in the Commonwealth of Pennsylvania. Div. 28 has been his home division since joining APA more than two decades ago. He served as the awards chair from 2008 through 2010 and was awarded fellow status in the division in 2010. His National Institutes of Health-funded research has focused primarily on empirically isolating the active mechanisms of drug courts, developing empirically based dispositional procedures for offenders with substance use disorders, integrating disease prevention and healthcare into criminal justice programs for substance users, and bringing experimental research methods to bear on major ethical questions facing participants in substance abuse research.


Mark Smith, PhDMark Smith, PhD, is a professor in the department of psychology at Davidson College. Smith's primary line of research focuses on the behavioral effects of opioids and cocaine, and identifying the variables contributing to differences in drug sensitivity across individuals. Div. 28 has been his scientific home within APA for over a decade. Div. 28 has recognized his contributions to the field, first by awarding him with a young investigator travel award to attend his first APA convention in 2004 and recently by electing him to fellow status in 2011. Smith has served on the Executive Committee of Div. 28 almost continuously since 2007, serving as secretary (2007-11), liaison to the Science Directorate (2011-12) and program chair (2011-13). He is also currently serving a three-year term as member-at-large (2015-17). Smith will begin his term as APA Div. 28 president in January 2018.

Past President

Stacey Sigmon, PhDStacey Sigmon, PhD is a research associate professor in the departments of psychology and psychiatry at the University of Vermont. Her research interests include laboratory models for understanding the interactions between stimulant medications and behavioral and pharmacological treatments of opioid dependence, smoking among opioid-dependent patients and substance abuse among individuals with serious mental illness. She joined the division 19 years ago as a graduate student and has served as the division's program chair and a member-at-large. She has also served on the Program, Awards and Executive Committees. She has received multiple honors from Div. 28 including the Division Poster Award, Wyeth Young Psychopharmacologist Award and is to be elected a fellow of the division.