Dr. Murphy does not plan to admit a new doctoral student for Fall 2025 admission.

Education

• Ph.D., Auburn University
• M.S., Auburn University
• B.A., Seton Hall University

Research Interests

• Addictive and Health Risk Behaviors
• Behavioral Economic and Decision Making Processes Related to Addiction, and Addictive Behavior Change
• Addiction Assessment and Treatment
• Brief Interventions with Young Adult Populations including College Students, Military Veterans, and Individuals without a College Degree
• Mechanisms of Health and Addictive Behavior Change
• Health Disparities
• Technology Based Interventions

Selected Recent Publications (*denotes a mentored student author)

• Murphy, J. G., Dennhardt, A. A., Martens, M. P., Borsari, B., Witkiewitz, K., & *Meshesha, L. Z. (2019). A randomized clinical trial evaluating the efficacy of a brief alcohol intervention supplemented with a substance-free activity session or relaxation training. Journal of Consulting and Clinical Psychology. DOI: 10.1037/ccp0000412
  
  
• Marks, L. R., *Acuff, S. F., *Withers, A. J., MacKillop, J., & Murphy, J. G. (2021). Adverse childhood experiences, racial microaggressions, and alcohol misuse in Black and White emerging adults. Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors, 35(3), 274–282. https://doi.org/10.1037/adb0000597
  
  
• Murphy, J. G., *Gex, K. S., Dennhardt, A. A., Miller, A., O’Neill, S. E., & Borsari. B. (2022). Beyond BASICS: A scoping review of novel intervention content to enhance the efficacy of brief alcohol interventions for emerging adults. Psychology of Addictive Behaviors. 36(6), 607–618. https://doi.org/10.1037/adb0000811
  
  
• *Gex, K. S., Mun, E. Y., Barnett, N. P., McDevitt-Murphy, M. E., Ruggiero, K. J., Thurston, I. B., Olin, C. C., Voss, A. T., Withers, A. J., & Murphy, J. G. (2023). A randomized pilot trial of a mobile delivered brief motivational interviewing and behavioral economic alcohol intervention for emerging adults. Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors, 37(3), 462–474. https://doi.org/10.1037/adb0000838
  
  
• *Luciano, M. T., Acuff, S. F., Olin, C. C., Lewin, R. K., Strickland, J. C., McDevitt-Murphy, M. E., & Murphy, J. G. (2022). Posttraumatic stress disorder, drinking to cope, and harmful alcohol use: A multivariate meta-analysis of the self-medication hypothesis. Journal of Psychopathology and Clinical Science (previously Journal of Abnormal Psychology). doi: 10.1037/abn0000764. Epub 2022 May 19. PMID: 35587413
  
  
• *Gex, K. S., Acuff, S. F., Campbell, K. W., Mun, E. Y., Dennhardt, A. A., Borsari, B., Martens, M. P., & Murphy, J. G. (2022). Change in alcohol demand following a brief intervention predicts change in alcohol use: A latent growth curve analysis. Alcoholism: Clinical and Experimental research. 10.1111/acer.14887. Advance online publication. https://doi.org/10.1111/acer.14887
  
  
• Gaume, J., Murphy, J. G., Studer, J., Daeppen, J. B., Gmel, G., & Bertholet, N. (2022). Behavioral economics indices predict alcohol use and consequences in young men at 4-year follow-up. Addiction (Abingdon, England), 117(11), 2816–2825. https://doi.org/10.1111/add.15986
  
  
• González-Roz, A., Martínez-Loredo, V., Aston, E. R., Metrik, J., Murphy, J. G., Balodis, I., Secades-Villa, R., Belisario, K., & MacKillop, J. (2023). Concurrent validity of the marijuana purchase task: a meta-analysis of trait-level cannabis demand and cannabis involvement. Addiction (Abingdon, England), 118(4), 620–633. https://doi.org/10.1111/add.16075
  
  
• * Acuff, S. F., Strickland, J. C., Aston, E. R., Gex, K. S., & Murphy, J. G. (2023). The effects of social context and opportunity cost on the behavioral economic value of cannabis. Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors, 37(1), 156–165. https://doi.org/10.1037/adb0000902
  
  
• *Acuff, S. F., MacKillop, J. & Murphy, J. G. (2023). A contextualized reinforcer pathology approach to addiction. Nature Reviews Psychology. 10.1038/s44159-023-00167-y
  
  
• *Acuff, S. F., Belisario, K., Dennhardt, A. A., Amlung, M. T., Tucker, J. A., MacKillop, J., Murphy, J. G. (in press). Applying Behavioral Economics to Understand Changes in Alcohol Outcomes during the Transition to Adulthood: Longitudinal Relations and Differences by Sex and Race. Psychology of Addictive Behaviors.
  
  
• Peter, S. C., Murphy, J. G., Witkiewitz, K., Hand, S. B., Thomas, F., Johnson, K. C., Cowan, R., Harris, M., & Derefinko, K. J. (2023). Use of a sequential multiple assignment randomized trial to test contingency management and an integrated behavioral economic and mindfulness intervention for buprenorphine-naloxone medication adherence for opioid use disorder. Trials, 24(1), 237. https://doi.org/10.1186/s13063-023-07102-9