Walter Greenleaf, PhD is a research neuroscientist and medical product developer working at Stanford University. Walter is known internationally as an early pioneer in digital medicine and virtual environment technology, and is considered the leading authority on medical applications of Virtual Reality and Augmented Reality Technology. As a scientist and medical product developer, Walter�s focus has been on computer-supported clinical products, with a specific focus on virtual reality and digital health technology to treat Post-traumatic Stress Disorder, Anxiety Disorders, Traumatic Brain Injury and Stroke, Addictions, Autism, and other difficult problems in behavioral and physical medicine. Walter recently served as the Director for the Mind Division, Stanford Center on Longevity. He is currently a Visiting Scholar at the Stanford Virtual Human Interaction Lab. In addition to his research at Stanford, Walter is Chief Science Officer at Pear Therapeutics and Cognitive Leap.