Polyvagal theory (PVT)

https://en.wikipedia.org/wiki/Polyvagal_theory

https://www.amazon.com/Polyvagal-Theory-Therapy-Interpersonal-Neurobiology/dp/0393712370

Stephen Porges (b 1945)

https://en.wikipedia.org/wiki/Stephen_Porges

• Porges SW (2011). The Polyvagal Theory: Neurophysiological Foundations of Emotions, Attachment, Communication, and Self-regulation. New York: W.W. Norton & Co. ^{[ISBN missing]}
• Porges SW (2017). Pocket Guide to the Polyvagal Theory – The Transformative Power of Feeling Safe. W.W. Norton & Co. ^{[ISBN missing]}
• Porges SW (2021). Polyvagal Safety: Attachment, Communication, Self-Regulation. New York: W.W. Norton & Co. ^{[ISBN missing]}