Dr. Perkins received his Ph.D. in clinical psychology from the University of Iowa and is currently Professor of Psychiatry at the University of Pittsburgh. He has served on the editorial boards of several journals and on NIH grant review committees and advisory boards. Dr. Perkins has published over 150 scientific articles and chapters, mostly on the addictive effects of nicotine or smoking. He is a past-President of the Society for Research on Nicotine and Tobacco (SRNT) and is a Fellow of the American Psychological Association and of the Society of Behavioral Medicine. Dr. Conklin received her Ph.D. in clinical psychology from Purdue University and is currently Assistant Professor of Psychiatry at the University of Pittsburgh. Dr. Conklin has contributed book chapters on understanding and treating addiction, and has numerous journal articles investigating the effects of drug-related cues in smokers. Dr. Conklin's research is funded primarily by the National Institute on Drug Abuse, and she is the 2006 recipient of the APA Wyeth Young Psychopharmacologist award. Dr. Levine received her Ph.D. from the University of Pittsburgh and is currently Assistant Professor of Psychiatry at the University of Pittsburgh. A licensed clinical psychologist, Dr. Levine studies the relationships among mood, weight and health behaviors. She has published journal articles on the roles of mood and weight concerns in smoking postpartum, the prevention of weight gain among women, and the treatment of pediatric obesity. Her research is funded by the National Institutes of Health.