Polyvagal Theory in Psychotherapy Polyvagal theory in psychotherapy offers co-regulation as an interactive process that engages the social nervous systems of both therapist and client. Social engagement provides experiences of mutuality and reciprocity in which we are open to receiving another person, as they are. For the client who was rejected in childhood, this moment of … Continue reading Polyvagal Theory in Psychotherapy: Practical Applications for PTSD Treatment| Dr. Arielle Schwartz