Katherine Jonas, PhD LP

I am a licensed clinical psychologist and Assistant Professor in the Department of Psychiatry & Behavioral Health at Stony Brook University. My research aims to describe the course of psychotic disorders and identify markers of course, in order to better understand, predict, and treat psychotic disorders. I came to Stony Brook University in 2017 as a postdoctoral fellow, was appointed Assistant Professor in 2020, and have since become MPI of the Suffolk County cohort (R01MH135119, co-PI Kotov) and leader of a program of genetic research (funded by K08MH122673 and R21MH123908). I have publishing 60 peer-reviewed publications on the course of psychosis in journals such as JAMA Psychiatry, Molecular Psychiatry, and the American Journal of Psychiatry. I am a member of multiple genetic consortia, including the Psychiatric Genomics Consortium Schizophrenia and Cross-Disorders Workgroups, and co-chair the Genomics Workgroup of the Hierarchical Taxonomy of Psychopathology Consortium. I am one of three leaders of the Psychiatric Genomics Consortium First Episode Psychosis Genetics consortium.

• Trajectories and Determinants of Cognitive Decline in Psychotic Disorders Over 35 Years, NIMH R01 MH135119, MPI
• Improving the Precision of Genetic Markers for Psychotic Disorders, NIMH K08 MH122673, PI Optimized Phenotypes for Genetic Association Studies NIMH R21 MH123908, PI
• Redefining Insomnia: A Comparison of Categorical and Dimensional Approaches, NHLBI R01 HL173043, Co-I

(†Indicates co-first authorship)

• Asim, A., Yang, Y., PsyCourse Consortium, Heilbronner, U., Schulze, T., Lencz, T., Vassos, E., Clouston, S., Kotov, R. Jonas, K. G., (2026). The impact of collider bias on genetic prediction in psychotic disorders. Neuropsychopharmacology, 51(2):430-439
• Tramazzo, S., Lian, W., Ajnakina, O., Carlson, G., Bromet, E., Kotov, R., Jonas. K. G. (2024). The long-term course of remission and recovery in psychotic disorders. American Journal of Psychiatry, 181(6), 532-540.
• Waszczuk, M.†, Jonas, K. G.†, Bornovalova, M., Breen, G., Bulik, C. M., Docherty, A. R., ... & Waldman, I. D. (2023). Dimensional and transdiagnostic phenotypes in psychiatric genome-wide association studies. Molecular Psychiatry, 28(12), 4943-4953.
• Jonas, K. G., Lian, W., Callahan, J., Ruggero, C. J., Clouston, S., Reichenberg, A., Carlson, G. A., Bromet, E. J., Kotov, R. (2022). The course of general cognitive ability in psychotic disorders. JAMA Psychiatry, 79(7), 659-666.
• Jonas, K.G., Fochtmann, L.J., Perlman, G., Kane, J., Bromet, E.J., Kotov, R. (2020). Lead-time bias confounds association between duration of untreated illness and course of schizophrenia. American Journal of Psychiatry, 177(4), 327-334.

• 2025, Early Career Research Excellence Award, Renaissance School of Medicine
• 2023, Chair’s Choice Travel Fellowship Award, Society of Biological Psychiatry
• 2022, Early Career Award, Schizophrenia International Research Society
• 2021, Face of the Future, Society for Research in Psychopathology
• 2016, Spence Award, University of Iowa Department of Psychology

• Hierarchical Taxonomy of Psychopathology (HiTOP) Consortium, Co-Chair of Genomics workgroup
• Psychiatric Genomics Consortium
• New York Genome Center Neuropsychiatric Working Group
• Schizophrenia International Research Society