People
James Murphy, Ph.D. (he/him/his)DirectorEducation and Training Dr. James Murphy is a Dunavant Professor of Psychology at the University of Memphis and previously served as the Director of Clinical Training for the Clinical Psychology Doctoral Program. He completed his doctoral degree at Auburn University in 2003 and an Addiction Research Postdoctoral Fellowship at Brown University in 2006. Dr. Murphy’s addiction research has been continuously funded by the National Institute on Health for the past 20 years. He has served as a grant reviewer for several NIH study sections and is an Associate Editor for the journal Psychology of Addictive Behaviors. He is a fellow in APA Division 50 (Society of Addiction Psychology) and Division 28 (Psychopharmacology) and has served as a mentor or co-mentor on over 15 federally funded dissertation or early career development fellowship awards (i.e., NIH F and K awards). He has published over 220 papers and chapters related to the etiology, prevention, and treatment of alcohol and drug use disorders. Dr. Murphy has developed novel brief intervention approaches that reduce drinking and drug use and tested the effects in a number of randomized clinical trials with young adults, military veterans, and other high-risk populations. His research has helped to establish the efficacy of brief alcohol interventions with a variety of young adult populations, expanded their reach by developing novel computerized and mobile technology-delivered adaptations, and identified the particular components that are most efficacious. His research also explores novel behavioral economic predictors of substance use severity and treatment outcome, and he has developed novel behavioral economic approaches to enhance addiction treatment. |
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Ashley Dennhardt, Ph.D (she/her/hers)Education and Training
Dr. Ashley Dennhardt is a research assistant professor in the Department of Psychology. She received her B.A. from the University of Iowa in 2006, her Ph.D. in Clinical Psychology from the University of Memphis in 2013 with a clinical internship at the Memphis VA Medical Center. She completed a postdoctoral fellowship in the HABIT lab that allowed her to continue her research on brief interventions and factors that contribute to substance use and poor response to intervention. She served as project director of several NIH-funded studies during this time. Dr. Dennhardt continues to work alongside Dr. Murphy in the HABIT lab as a Research Assistant Professor and teaches several UofM Global courses. Her research interests include addictive behaviors, brief interventions and behavioral economic and affective factors that contribute to poor response to substance use interventions. |
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Will Davis, B.G.S. (he/him/his)Doctoral StudentEducation and Training
Will graduated from the University of Kansas in 2022 with a degree in Psychology. He now studies the behavioral economics of substance use, substance use treatment, and harm reduction strategies. |
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Ebonie White, B.A. (she/her/hers)Doctoral StudentEducation and Training
Ebonie graduated from Winthrop University in December 2023 with a B.A. in Psychology. She had experience with research in Winthrop's Ronald E. McNair Scholars Program and furthered her research interests in the Diversity in Addiction Research Training Program at the Medical University of South Carolina. The overarching goal of her research is to help address and reconcile disparities associated with receiving and maintaining help for substance use. She is particularly passionate about examining ways to impact substance misuse in socioeconomically disadvantaged groups, racially marginalized communities, and other underserved populations.
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Destinee Cruthird, B.A. (she/her/hers)Masters studentEducation and Training
Destinee graduated with a Bachelor of Arts, in Psychology at ֱ in 2020. Her current interests include examining heavy drinking in college-aged adults particularly with a family history positive for alcohol misuse. Through mixed methods research she hopes to focus on the behavioral economics model to better understand choice behavior as a means of decreasing alcohol misuse. |
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Avery Buck, B.A. (she/her/hers)Doctoral studentEducation and Training
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Jacob Tempchin, M.S. (he/him/his)Doctoral studentEducation and Training
Jacob has obtained an M.S. in Quantitative Methods in the Social Sciences from The
Graduate Center of the City University of New York, an advanced certificate in Comparative
Effectiveness & Implementation Research Training from the New York University School
of Medicine, and a B.A. in philosophy from Princeton University. His primary research
interest is to study the adaptation and implementation of brief alcohol interventions
in primary care and community settings. |
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Hannah E. Colgonis, M.S. (she/her/hers)Doctoral studentEducation and Training
Hannah graduated from the University of Tulsa in May 2018 with a B.S. in Psychology. Hannah is in her fourth year in the Clinical Psychology PhD program. Her current interests involve substance use, substance use treatment, and barriers to care in the LGBTQ+ community. Her master’s thesis focused on trans and gender diverse individuals’ thoughts about and experiences with treatment for drug and alcohol use. The ultimate aim of her work is to increase access to competent, sensitive care for historically underserved communities. |
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