Polyvagal-Informed Therapy
Polyvagal-Informed Therapy is a somatic framework rather than a manualized therapy, built on Stephen Porges's polyvagal theory (1994, collected in 2011) and translated into clinical practice by Deb Dana from 2018. Its core mechanism: identifying autonomic state (ventral/sympathetic/dorsal), co-regulation with therapist and building ventral vagal capacity. This catalogue links it to PTSD, complex trauma and anxiety, typically in individual format, framework.
Related condition topics
These links support exploration. They do not establish that Polyvagal-Informed Therapy is effective or recommended for each condition.
How Polyvagal-Informed Therapy works
Identifying autonomic state (ventral/sympathetic/dorsal) + co-regulation with therapist + building ventral vagal capacity
Ontology
Trauma disrupts autonomic regulation; neuroception of danger keeps nervous system in defensive states
Therapeutic Voice
"That shutdown feeling. That's your nervous system protecting you. It makes sense. Let's see if we can find a little more safety right now."
View of the Person
An autonomically regulated being whose nervous system state determines access to social engagement, defense, or collapse
Epistemology
Evidence
Framework — unranked
This entry describes a framework. A treatment evidence tier does not apply; its recorded source material remains under review.
Recorded material under review
The existing notes below are retained separately from assessment records. These recorded claims await source checking, including study design, recommendations and numerical estimates.
N/A
N/A: framework
N/A
Influential but scientifically contested (Grossman, 2023). Clinical applications popular but not validated independently.
Training and certification
Framework, not protocol. Graduate training + Porges/Dana reading sufficient
No certification. Polyvagal Institute's Certificate Course confers 'Polyvagal-Informed' status only; PVI states no 'certified polyvagal therapist' credential exists
Self-study + workshops: 8-24 hrs
$200-1K
Clinical cautions and blind spots
Assessment and precautions
Active psychosis, medical conditions where autonomic activation is dangerous, situations requiring immediate crisis intervention
Blind spots
Underlying theory scientifically contested; clinical applications extrapolate beyond evidence; not a standalone protocol, and running it as one rather than letting it inform an evidence-based treatment is a misapplication of the framework
Philosophical roots
Porges (polyvagal theory); Darwin (The Expression of the Emotions, where the vagus appears as the pneumogastric nerve, which Porges cites as an anticipation); MacLean (triune brain, whose evolutionary layering the theory structurally repeats and which comparative neuroanatomy has since abandoned); Dana (clinical translation); Levine (somatic trauma); Merleau-Ponty (body-subject)
Compared with other approaches
Controversies
Porges' polyvagal theory has faced serious scientific criticism (Grossman, 2023); clinical applications extrapolate beyond the evidence
Neuroscientist Paul Grossman published a peer-reviewed review concluding there is ‘broad consensus among experts that each basic physiological assumption of the polyvagal theory is untenable.’ Key issues: the evolutionary narrative is contradicted by social behavior in reptiles; myelinated vagus fibers exist in lungfish (contradicting mammalian uniqueness claim); Porges stated PVT ‘was not proposed to be either proven or falsified’ (inconsistent with scientific method); weak RSA-psychopathology links.
Porges published multiple responses arguing critics misrepresent PVT. The Polyvagal Institute maintains rebuttals. Supporters note PVT’s clinical utility in trauma therapy may be separable from neurobiological disputes.
Test Yourself
Three polyvagal states?
Show answer
Ventral vagal (safe/social), sympathetic (fight/flight), dorsal vagal (shutdown).