Amanda Collins, PhD
PhD in Clinical Psychology from Mississippi State University, 2023
Research interests
Dr. Amanda Collins 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 Mississippi State University and completed her predoctoral clinical internship at Dartmouth-Hitchcock Medical Center. At Mississippi State University, she worked with Dr. E Samuel Winer to investigate reward devaluation and self-referential processing in depressed individuals using network analysis and meta-analytic techniques. Dr. Collins is currently working with Dr. Nick Jacobson and is primarily interested in using intensive longitudinal data to investigate how changes in positivity appraisals and affect can predict depression and co-occurring disorders. She is also interested in developing digital interventions to target reward devaluation and reduced positive affect in depression and co-occurring disorders.
Daniel M. Mackin, PhD (Affiliated Trainee)
PhD in Clinical Psychology from Stony Brook University, 2023
Research interests
Dr. Daniel M. Mackin earned his PhD in Clinical Psychology from Stony Brook University and completed his clinical fellowship at the Warren Alpert Medical School of Brown University in 2023. Dr. Mackin’s research examines multiple levels of analysis to study the development, course, and classification of internalizing psychopathology. During graduate school, his program of research examined how reward processing, reinforcement learning, life stress, and personality influence depressive and anxiety disorders longitudinally. As a postdoctoral fellow, Dr. Mackin is working with Dr. Nicholas C. Jacobson to apply machine learning techniques to passive sensing data from smartphones and wearable devices to better assess and predict real-time fluctuations in depressive symptoms. He is also interested in developing and implementing personalized just-in-time adaptive interventions (JITAIs). Additionally, Dr. Mackin is working towards becoming a Licensed Clinical Psychologist. In his spare time, he enjoys golfing, kayaking, and spending time with his family and dog.
Deepika Rao, PhD, MS, BPharm
PhD in Health Services Research in Pharmacy, University of Wisconsin-Madison, 2022
Research interests
I hold a Bachelor of Pharmacy (2016) from University of Mumbai, India and a Master’s degree in Pharmacy Administration (2018) from Duquesne University, Pittsburgh. My Master’s thesis was titled ‘Community Pharmacists and Substance Use Disorders: Attitudes, Knowledge and Practices’. I received my PhD in Health Services Research in Pharmacy (2022) from UW-Madison. My doctoral dissertation involved exploring and developing a patient-centered screening and brief intervention for opioid misuse for pharmacy settings. I am particularly interested in studying the application of mixed methods and dissemination and implementation sciences, especially in the prevention and treatment of substance use disorders. In my spare time, I enjoy reading and exploring different craft hobbies.
Samuel Stull, PhD
PhD in Biobehavioral Health, Penn State University, 2024
Research interests
Dr. Samuel W. Stull is a T32 postdoctoral research fellow in the Center for Technology and Behavioral Health at Dartmouth College. He received his PhD in Biobehavioral Health (emphasis in applied statistics) from Penn State University working under the mentorship of Dr. Stephanie Lanza. As a PhD student, Dr. Stull was awarded a National Science Foundation 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. Dr. Stull’s research is focused on the role of positive moods states and nondrug rewards in supporting recovery from addiction on a daily basis. Integrated in his work is often the use of innovative methods to delineate dynamic and heterogenous daily processes (e.g., time-varying effect modeling, multilevel latent class analysis). As a postdoctoral fellow, Dr. Stull will work under the mentorship of Drs. Lisa Marsch and Nicholas Jacobson to learn key theoretical (i.e. science of behavior change) and methodological approaches (i.e. adaptive interventions, micro-randomized trials) for developing digital interventions. Dr. Stull’s focus will include the development of a novel humor-based digital intervention to promote greater treatment engagement, enjoyment, and adaptive coping strategies to support recovery from addiction.