The Polyvagal Theory: Neurophysiological Foundations of Emotions, Attachment, Communication, and Self-regulation
Also known as The Polyvagal Theory: Neurophysiological Foundations of Emotions
Stephen Porges's 2011 collection of his research papers on the polyvagal theory
At a glance
What it argues
Nervous system first, Beyond two branches
See all 2Key ideas
Hierarchy, Neuroception, Co-regulation …
See all 5Criticism and limits
Physiology, Anatomy, Evolution …
See all 4Read next
The polyvagal perspective, Polyvagal theory, The Body Keeps the Score
See all 3Connections
Stephen Porges, Polyvagal theory and Psychological trauma
See all 3
Also on this page: Key facts · Links · Sources · Related pages
- The book compiles, for the first time, Porges's decades of research behind the polyvagal theory.
- The theory says the autonomic nervous system unconsciously shapes social engagement, trust and intimacy.
- It splits the vagus nerve into an older branch for shutdown and a newer, mammalian one for social engagement.
- Clinicians have taken it up for trauma, anxiety and autism.
- Many physiologists and evolutionary biologists say its basic premises are wrong.
Why it matters
- Trauma therapists such as Bessel van der Kolk and Peter A.
- Levine draw on the theory; this is its primary source.
- Read it with the criticism, which is unusually strong.
Key facts
- Author
- Stephen W. Porges1
- Published
- April 25, 20111
- Publisher
- W. W. Norton & Company1
- Pages
- 3841
- ISBN
- 9780393707007 (hardcover); 9780393709063 (e-book)1
- Theory first proposed
- 19943
What it argues
-
Nervous system first1
The autonomic nervous system unconsciously mediates social engagement, trust and intimacy, with implications for anxiety, depression, trauma and autism.
-
Beyond two branches2
The parasympathetic system is split into a ventral vagal branch for social engagement and a dorsal one for immobilisation or shutdown.
Key ideas
-
Hierarchy2
The nervous system reacts in three patterns, activated in a set order: newest first, oldest when the newer fail.
-
Neuroception2
Detecting safety or danger without awareness, as distinct from perception.
-
Co-regulation2
People need to feel safe enough to be in relationships, which is difficult for traumatised people.
-
The vagal brake2
The vagus restrains heart rate; releasing it allows quick mobilisation without engaging the sympathetic-adrenal system, the theory claims.
-
Vagal tone as a measure2
Porges proposes respiratory sinus arrhythmia as a non-invasive index of vagal regulation and stress reactivity.
Criticism and limits
-
Physiology2
Paul Grossman (2023) reports broad expert consensus that each basic physiological assumption of the theory is untenable.
-
Anatomy2
Neuhuber and Berthoud (2022) find no support for a role of the dorsal vagal complex in freezing, as the theory proposes.
-
Evolution2
Myelinated vagal fibres from the nucleus ambiguus to the heart in lungfish contradict the claim that this system is unique to mammals.
-
Falsifiability2
Porges wrote in 2021 that the theory was not proposed to be "proven" or "falsified"; in 2025 he answered that it makes testable predictions.
Read next
-
Porges's 2007 paper, a compact and free statement of the theory.
-
The overview page, with the claims and the counter-evidence.
-
The bestseller that carried polyvagal ideas to therapists and the public.
Connections
Links
Sources
Last checked against its sources today
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