Stephen W. Porges, PhD, originator of Polyvagal Theory, is a Distinguished University Scientist and founding director of the Kinsey Institute Traumatic Stress Research Consortium at Indiana University, and a professor of psychiatry at the University of North Carolina. He lives in Atlantic Beach, Florida.

Deb Dana, LCSW, is a clinician, consultant, and speaker specializing in complex trauma. She is the leading translator of Dr. Stephen Porges' Polyvagal Theory for both clinical and general audiences, and the best-selling author of Polyvagal Practices, Polyvagal Card Deck, The Polyvagal Flip Chart, Polyvagal Exercises for Safety and Connection, The Polyvagal Theory in Therapy, and co-editor with Dr. Stephen Porges of Clinical Applications of The Polyvagal Theory. She trains therapists around the world in how to bring a Polyvagal approach into their clinical practice, and also works with agencies and larger systems to explore how to incorporate a Polyvagal perspective.

She is founding member of The Polyvagal Institute, a consultant to Khiron Clinics, and an advisor to Unyte. Visit her website at http://rhythmofregulation.com/.