Willoughby Britton, PhD, is an Assistant Professor of Psychiatry and Human Behavior at Brown University Medical School, and the Director of the 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. She recently completed the Varieties of Contemplative Experience study, which investigates the broader range of experiences that can arise in the context of contemplative practices, including experiences that could be considered difficult, challenging or adverse. 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 now specializes in helping meditators who are experiencing meditation-related difficulties, and providing meditation safety trainings to providers and organizations.