Dr. Porges is best known for his Polyvagal Theory linking the evolution of the autonomic nervous system to the emergence of social behavior. He is the author of The Polyvagal Theory, Neurophysiological Foundations of Emotions, Attachment, Communication and Self Regulation and is a Distinguished University Scientist at the Kinsey Institute at Indiana University, Bloomington and Research Professor in the Department of Psychiatry at the University of North Carolina, Chapel Hill.