Seth J. Gillihan, PhD, is a clinical assistant professor of psychology in the psychiatry department at the University of Pennsylvania. He is a licensed psychologist in Pennsylvania and maintains a private practice in Haverford, PA, where he provides specialized cognitive behavioral therapy (CBT) and mindfulness-based interventions for anxiety, depression, insomnia, posttraumatic stress disorder (PTSD), and obsessive-compulsive disorder (OCD).
Gillihan has authored many journal articles and book chapters on CBT for anxiety and depression and the role of brain imaging in psychiatry. His books include The CBT Deck, featuring 101 practices to improve thoughts, be in the moment, and take action in your life; A Mindful Year: 365 Ways to Find Connection and the Sacred in Everyday Life, co-written with Dr. Aria Campbell-Danesh; Cognitive Behavioral Therapy Made Simple; Retrain Your Brain: Cognitive Behavioral Therapy in 7 Weeks, a self-directed workbook for managing depression and anxiety; and Overcoming OCD: A Journey to Recovery, which he co-wrote with Janet Singer.
Gillihan received his master's degree in counseling from The George Washington University and his doctorate in psychology from the University of Pennsylvania. He was a full-time faculty member and director of research at the Center for the Treatment and Study of Anxiety (CTSA), University of Pennsylvania, from 2008 to 2012. In 2012, he left the CTSA to join the faculty in the psychology department at Haverford College, where he taught full-time from 2012 to 2015 as a visiting assistant professor. He hosts the weekly Think Act Be podcast, which features a wide range of conversations on living more fully.
In 2012, he was named a fellow of the Center for Neuroscience & Society at the University of Pennsylvania.