Peter B. Barr, PhD

Dr. Barr’s background is the social determinants of mental health and psychiatric conditions. After completing his doctoral training in sociology, he went on to complete a postdoctoral fellowship in psychiatric genetics at Virginia Commonwealth University. Dr Barr has advanced training in longitudinal analysis, statistical and psychiatric genetics, and the epidemiology of substance use disorders and comorbid problems. His work has explored a variety of topics including early life influences on trajectories of mental health problems, the role of social conditions in moderating genetic liability towards substance misuse, and harnessing comorbidity between psychiatric disorders to aid in genetic discovery. His recent work explores the use of social, clinical, and genetic data to identify those at extreme risk of developing various psychiatric problems. Additionally, he has worked in large-scale biobanks, including the Million Veterans Program Cohort and the All of Us Research Program,  to explore and patterns of comorbidities, with a particular focus in the overlap between externalizing problems and suicide risk.

• Barr, Peter B., Zoe Neale, Jessica Schulman Niamh Mullins, Jian Zhang, David B. Chorlian, Chella Kamarajan,          Sivan Kinreich, Ashwini K. Pandey, Gayathri Pandey, Stacey Subbie, Laura Acion, Lance   Bauer, Kathleen K. Bucholz, Grace Chan, Michael Chao, Danielle M. Dick, Howard J. Edenberg, Tatiana Foroud, Alison Goate, Victor Hesselbrock, Emma C. Johnson, John Kramer, Dongbing Lai, Martin H. Plawecki, Jessica E. Salvatore, Leah Wetherill, Arpana Agrawal, Bernice Porjesz & Jacquelyn L. Meyers. 2025. “Clinical, Genomic, and Neurophysiological Correlates of Lifetime Suicide Attempts among Individuals with an Alcohol Use Disorder.” Complex Psychiatry. https://doi.org/10.1159/000543222
• Bigdeli^†, Tim B. Peter B. Barr^†,  Nallakkandi Rajeevan,  David P. Graham, Yuli Li,  Jacquelyn L. Meyers, Bryan R. Gorman,  Roseann E. Peterson, Frederick Sayward, Krishnan Radhakrishnan, Sundar Natarajan, David A. Nielsen, Anna V. Wilkinson, Anil K. Malhotra, Hongyu Zhao, Mary Brophy, Yunling Shi, Timothy J. O’Leary, Theresa Gleason, Ronald  Przygodzki, Saiju Pyarajan,  Sumitra Muralidhar,  Michael Gaziano, Million Veteran Program (MVP), Cooperative Studies Program (CSP) #572,  Grant D. Huang,  John Concato, Larry J. Siever,  Lynn E. DeLisi,  Nathan A. Kimbrel,  Jean C. Beckham,  Alan C. Swann,  Thomas R. Kosten,  Ayman H. Fanous,  Mihaela Aslan,  Philip D. Harvey. 2024. “Correlates of suicidal behaviors and genetic risk among United States veterans with schizophrenia or bipolar I disorder.” Molecular Psychiatry. https://doi.org/10.1038/s41380-024-02472-1
• Barr Peter B.^†, Tim B. Bigdeli^†, Jacquelyn L. Meyers, Roseann E. Peterson, Sandra Sanchez-Roige, Travis T. Mallard, Danielle M. Dick, K. Paige Harden, Anna Wilkinson, David P. Graham, David A. Nielsen, Alan Swann, Rachele K. Lipsky, Thomas Kosten, Mihaela Aslan, Cooperative Studies Program (CSP) #572, Million Veteran Program, Philip D. Harvey, Nathan A. Kimbrel, Jean C. Beckham. 2023. “Correlates of Risk for Disinhibited Behaviors in the Million Veteran Program  ” JAMA Psychiatry. https://doi:10.1001/jamapsychiatry.2023.4141
• Barr, Peter B., Morgan N. Driver, Sally I-Chun Kuo, Mallory Stephenson, Fazil Aliev, Richard Karlsson Linnér, Jesse Marks, Andrey P. Anokhin, Kathleen Bucholz, Grace Chan, Howard J. Edenberg, Alexis C. Edwards, Meredith W. Francis, Dana B. Hancock, K. Paige Harden, Chella Kamarajan, Jaakko Kaprio, Sivan Kinreich, John Kramer, Samuel Kuperman, Antti Latvala, Jacquelyn L. Meyers, Abraham A. Palmer, Martin H. Plawecki, Bernice Porjesz, Richard J. Rose, Marc A. Schuckit, Jessica E. Salvatore, and Danielle M. Dick. 2022. “Clinical, Environmental, and Genetic Risk Factors for Substance Use Disorders: Characterizing Combined Effects across Multiple Cohorts.” Molecular Psychiatry. https://doi.org/10.1038/s41380-022-01801-6
• ​​Barr, Peter B., Tim Bigdeli, and Jacquelyn L. Meyers. 2022. “Prevalence, Comorbidity, and Sociodemographic Correlates of Psychiatric Diagnoses in the All Of Us Research Program.” JAMA Psychiatry. https://doi:10.1001/jamapsychiatry.2022.0685

 

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