Polyvagal 101

This book presents the Polyvagal Theory, which was introduced by Stephen W. Porges in 1994. The theory reworks our understanding of the autonomic nervous system, particularly the parasympathetic nervous system, by dividing it into two distinct branches: the ventral vagal system, which supports social engagement, and the dorsal vagal system, which supports immobilization behaviors. The theory has significant implications for the treatment of anxiety, depression, trauma, and autism, and it provides insights into how our autonomic nervous system mediates social engagement, trust, and intimacy. The book is divided into several parts, covering theoretical principles, biobehavioral regulation during early development, social communication and relationships, and therapeutic and clinical perspectives.