
Caroline M. Barry, PhD, MPH
PhD, MPH in Behavioral, Social, and Health Education Sciences, Emory University, 2025
Research interests
Dr. Caroline Barry is a NIDA T32 postdoctoral research fellow in the Center for Technology and Behavioral Health at Dartmouth. Her research focuses on adolescent mental health and substance misuse prevention, with an emphasis on community-engaged methods, social determinants of health, and implementation science. Her graduate and postdoctoral work at Emory University contributed to a cluster-randomized trial evaluating a multi-level intervention to prevent alcohol use, cannabis use, vaping, and prescription opioid misuse among adolescents in rural reservation-based communities (PIs: Kelli Komro, Doug Livingston, Juli Skinner; see Connect for Prevention). She was also a predoctoral fellow on a NIDA T32 training grant in advanced data analytics to end drug-related harms (PIs: Hannah Cooper, Lance Waller, Abeed Sarker). At Dartmouth, Dr. Barry works with Drs. Sarah Lord and Lynn Fiellin as part of the play2PREVENT lab, which develops and evaluates evidence-based digital health games to promote youth wellbeing and prevent risk behaviors. She is committed to community partnership in research and advancing sustainable, evidence-based strategies that support youth mental health and delay the initiation and escalation of substance use.

Lauren Finkelstein, PhD
PhD, Clinical Psychology from the University of Colorado Boulder, 2026
Research interests
Lauren Finkelstein is a postdoctoral fellow in the NIH-NIDA T32 Science of Co-Occurring Disorders program within Dartmouth College’s Center for Technology and Behavioral Health. She received her PhD in Clinical Psychology from the University of Colorado Boulder and completed a predoctoral fellowship in behavioral medicine at Massachusetts General Hospital/Harvard Medical School. She currently works with Dr. Madelyn Frumkin, using intensive longitudinal data techniques to develop personalized digital therapeutics that address the mental and behavioral health needs of individuals living with cancer or other chronic illnesses.

Elizabeth W. Lampe, PhD
PhD in Clinical Psychology, Drexel University, 2025
Research interests
Dr. Elizabeth Lampe is a T32 postdoctoral research fellow in the Center for Technology and Behavioral Health at Dartmouth College. She received her PhD in clinical psychology from Drexel University under the mentorship of Dr. Stephanie Manasse. Elizabeth completed her pre-doctoral internship in clinical psychology in the Department of Psychiatry at Dartmouth-Hitchcock Medical Center. Elizabeth's research uses ambulatory assessment technology, traditional and data-driven statistical modeling, and theoretical frameworks of both disordered eating and health-behavior promotion to identify novel treatment targets for eating disorders (e.g., exercise, sleep, substance use), with the ultimate goal of developing novel digital treatment approaches to provide support in the moment of need.

Mindy K. Ross, PhD
PhD in Biomedical Engineering, University of Illinois Chicago, 2025
Research interests
Mindy Ross is a T32 postdoctoral research fellow in the Center for Technology and Behavioral Health at Dartmouth College. She received her PhD in biomedical engineering from the University of Illinois Chicago under the mentorship of Dr. Alex Leow. Her research interests center around using digital phenotyping to monitor symptoms of mental illness. Mindy is currently working with Drs. Madelyn Frumkin and Nicholas Jacobson to develop digital therapeutics for individuals with co-occurring substance use and other disorders. Her research focuses on engineering novel approaches to symptom monitoring by integrating passive sensing from smartphones and wearable devices with machine learning and AI frameworks.

Samuel Stull, PhD (Affiliated Trainee)
PhD in Biobehavioral Health, Penn State University, 2024
Research interests
Dr. Samuel W. Stull is a Research Scientist at the Center for Technology and Behavioral Health at Dartmouth College. He is currently funded by a K01 Career Development Award from NIDA to develop and test the Humor and Addiction Recovery (HA!) app, a novel digital intervention designed to promote treatment engagement, enjoyment, and adaptive coping among adults in early recovery from opioid use disorder.
Dr. Stull's program of research examines the role of positive mood states and enjoyable events in supporting addiction recovery on a daily basis, with a particular focus on how digital interventions can be designed to leverage these processes to improve outcomes. His work integrates innovative analytic methods to capture the dynamic and heterogeneous nature of daily recovery processes, including time-varying effect modeling and multilevel latent class analysis. In addition, he draws on adaptive intervention and micro-randomized trial approaches to inform the development and optimization of digital interventions like the HA! app.
Dr. Stull completed postdoctoral training at the Center for Technology and Behavioral Health under the mentorship of Drs. Lisa Marsch and Nicholas Jacobson. He received his PhD in Biobehavioral Health (emphasis in applied statistics) from Penn State University under the mentorship of Dr. Stephanie Lanza, during which he was awarded an NSF Graduate Research Fellowship and a NIDA NRSA F31 Predoctoral Fellowship. Prior to graduate school, he worked as a post-baccalaureate fellow at the NIDA Intramural Research Program under the mentorship of Drs. Kenzie Preston and David Epstein.