I am a research scientist and clinical psychologist. Currently, I am a Senior Principal Research Scientist at Crisis Text Line. I manage a diverse team including computer engineers and data scientists who use analytic AI, natural language processing, and machine learning to understand aspects of mental health crises. Previously, I was an assistant professor in the Department of Psychiatry at McLean Hospital / Harvard Medical School. My research focused on understanding social withdrawal and isolation in people who have been exposed to stress (including trauma exposure and childhood maltreatment). I particularly focused on social withdrawal during the transition to adulthood, using multimodal neuroimaging approaches including structural MRI, functional MRI, diffusion tensor imaging, and magnetic resonance spectroscopy. In the earliest part of my career, I focused on understanding how brain development contributes to changes in decision-making about rewards during adolescence and the transition to adulthood. My work has been funded by the National Institute of Mental Health, the Brain & Behavior Research Foundation (NARSAD Young Investigator Award), the Centers for Disease Control, and the American Public Health Association.