Judson Alyn Brewer is an American psychiatrist, neuroscientist and author. He studies the neural mechanisms of mindfulness using standard and real-time fMRI, and has translated research findings into programs to treat addictions. Brewer founded MindSciences, Inc., an app-based digital therapeutic treatment program for anxiety, overeating, and smoking. He is director of research and innovation at Brown University's Mindfulness Center and associate professor in behavioral and social sciences in the Brown School of Public Health, and in psychiatry at Brown's Warren Alpert Medical School.