Willoughby Britton, Ph.D. is an Associate Professor of Psychiatry and Human Behavior at Brown University Medical School, and the Director of Brown’s Clinical and Affective Neuroscience Laboratory. Her clinical neuroscience research investigates the effects of contemplative practices on the brain and body in the treatment of mood disorders, trauma and other emotional disturbances. She is especially interested in practice-specific effects, and moderators of treatment outcome, or in other words “Which practices are best or worst suited for which types of people or conditions and why.” In addition to the Varieties of Contemplative Experience study, the most comprehensive study to data on meditation-related challenges, she also conducts research on mindfulness-based programs and apps. As a clinician, she has been trained as an instructor in Mindfulness-Based Stress Reduction (MBSR) and Mindfulness-based Cognitive Therapy (MBCT) and has taught mindfulness to both clinical and non-clinical populations. She founded the non-profit organization Cheetah House to provide support and resources for meditators who are experiencing meditation-related difficulties and provide meditation safety trainings to providers and organizations.