Research Team

Brian A. Fallon, MD, MPH, Professor of Clinical Psychiatry at the Columbia University College of Physicians and Surgeons, is the Director of the Lyme and Tick-borne Diseases Research Center at the Columbia University Medical Center.  A graduate of Harvard College, he obtained his M.D. degree from the Columbia University College of Physicians and Surgeons, as well as a master's degree in public health epidemiology from Columbia University. He did his research training and an NIH fellowship in biological psychiatry at Columbia Presbyterian Medical Center and the New York State Psychiatric Institute.   Dr. Fallon’s research has focused on neuropsychiatry – the discipline that studies the behavioral and mood effects of diseases that affect the brain.  His particular areas of research focus in Lyme disease include phenomenology, diagnostics, neuroimaging, biomarker, and treatment studies.  His expertise in psychiatry includes neurocognitive testing, clinical trial development, obsessive compulsive disorder, and hypochondriasis. Dr. Fallon has published over 100 peer-reviewed articles, review papers, and book chapters and he has served as a reviewer for many journals, including JAMA, Journal of Infectious Disease, Clinical Infectious Disease, and the American Journal of Psychiatry.


Shannon Delaney, MD is a Child and adolescent psychiatrist at Columbia University Medical Center completed her NIH-sponsored research fellowship at Columbia Univerrsity in child psychiatry in 2017. Her clinical research has focused on immune and infectious contributions to psychiatric disease, especially psychosis in children and young adults. A member of our team for over 3 years, she has recently joined an initiative to establish a PANDAS/PANS clinical assessment, treatment, and research center with experts from the Columbia University Departments of Neurology, Pathology, and Psychiatry. This PANS/PANDAS initiative will allow children with complex neuropsychiatric presentations to be evaluated for a variety of infectious and immune causes of neuropsychiatric disorders.

John G. Keilp, PhD is an Associate Research Scientist in the Division of Neuroscience at Columbia University. He has extensive experience in the assessment of cognitive impairment in psychiatric (depression) and neurologic (dementia, HIV and Lyme encephalopathy) disorders. He has also conducted numerous studies examining correlations between cognitive deficits and brain blood flow. Dr. Keilp is widely published in peer-reviewed journals.

James R. Moeller, PhD is Assistant Professor in the Division of Geriatrics at Columbia University.  He has pioneered the development of novel analytic methods for functional brain imaging data.  He has published and lectured widely on these methods, which have been applied to a variety of brain disorders including Parkinsons Disease, Torsion dystonia, Alzheimer’s Disease, and Lyme Disease.

Carolyn Britton, MD, Associate Professor of Neurology at Columbia University, is the chief neurologist for our Lyme research studies.  With specific expertise in neurovirology, Dr. Britton has a particular interest in the clinical care and research of patients with Lyme disease, Multiple Sclerosis, and HIV.  In 2008, Dr. Britton was elected President of the National Medical Association.

Ellen Brown, BA is a graduate of Duke University, majoring in dance and psychology. Her senior thesis evaluated the effects of emotion on dance performance. She is currently coordinator for the Second Opinion Research Service and also serves as research coordinator for several studies. During her off hours, she performs with SHIFT Dance in NYC.



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