Faculty Profile: Jason Lillis

Jason Lillis
Assistant Professor (Research)
Department of Psychiatry & Human Behavior
Work: 401-793-8375
Jason is a leading researcher and an internationally recognized trainer of Acceptance and Commitment Therapy (ACT). His primary research interest is applying acceptance and mindfulness methods to promote health behavior change, with a specific focus on improving long-term weight loss outcomes. He is also interested in the impact of obesity stigma on health and its role in fostering unhealthy lifestyle behaviors.


Jason Lillis, Ph.D., is an Assistant Professor (Research) in the Department of Psychiatry and Human Behavior at the Warren Alpert Medical School of Brown University and a clinical psychologist at the Weight Control and Diabetes Research Center at The Miriam Hospital. He is the author of two books: Acceptance and Commitment Therapy and The Diet Trap.

Selected Publications

  • Hayes, S.C., & Lillis, J. (2012) Acceptance and Commitment Therapy. American Psychological Association (Theories of Psychotherapy Series). http://www.amazon.com/Acceptance-Commitment-Therapy-Theories-Psychotherapy/dp/1433811537/ref=la_B0080F1NHG_1_1?ie=UTF8&qid=1347476515&sr=1-1 (2012)