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The '''polyvagal theory''' is a model of the autonomic nervous system proposed starting in 1994 by '''Stephen W. Porges''', an American neuroscientist. The model describes the autonomic system not as a two-arm scale (sympathetic versus parasympathetic) but as a hierarchy of three phylogenetically stratified circuits, governed in real time by a process of preconscious evaluation of environmental safety that Porges calls '''neuroception'''.

The theory spread very rapidly beyond academic psychophysiology — into trauma psychotherapy, body medicine, and somatic clinical practice — because it provides a unifying neurophysiological language for phenomena that previous traditions described in a fragmented way: traumatic freeze, social engagement, mobilized activation, trance states, and dissociative responses. For the [[Paret Method]], the polyvagal theory is the neurophysiological grammar that allows us to read in contemporary terms what the tradition of European magnetism had described phenomenologically a century and a half earlier — and what Eastern initiatic traditions (yoga, tantra, Taoism, Tibetan paths) had observed and trained systematically long before. The three-circuit architecture that Porges identifies anatomically corresponds precisely to the ternary structure of the living being described by the three Indian [[Guna e Tria Prima|guṇa]] (''rajas'', ''sattva'', ''tamas''), by the Paracelsian [[Tria Prima]] (Sulfur, Mercury, Salt), and by other converging triads (three Ayurvedic ''doṣa'', three centers of the enneagram). For the reader coming from an Eastern practice or a Western contemplative tradition, the polyvagal theory does not replace the familiar vocabulary: it adds the anatomical and measurable dimension to the description, articulating through distinct nerve circuits what the traditions describe through state qualities. For the articulated convergence, see [[Dall'ermetico al neurologico — corrispondenze]].

== The Three Circuits ==

;Ventral vagal circuit (myelinated)
:This is the most recent circuit in phylogenetic terms, exclusive to mammals. It connects the heart, lungs, face, voice, and middle ear. It is the circuit of social engagement, safety, and bonding. When active, the person is present, communicative, and in contact. It is the circuit upon which the [[Presenza Integrale|Integral Presence]] of the Method and the fascinator's engagement with the subject rest.

;Sympathetic circuit
:The intermediate circuit in phylogenetic terms. It mobilizes energy for action. Activated in response to non-survival threat, it produces fight and flight responses. In the [[Stato Fascinatorio|fascinatory state]] and in many activated trance states, it is modulated but not turned off.

;Dorsal vagal circuit (unmyelinated)
:The phylogenetically oldest circuit, shared with reptiles. It produces immobilization, conservation, and hypometabolism. In defensive mode, it generates traumatic ''freeze'' and dissociation; in non-defensive mode, it supports states of tonic quiet, deep absorption, and motionless ecstasy.

== Neuroception ==

The term '''neuroception''' indicates the process, constantly active and largely preconscious, by which the nervous system evaluates internal and external signals to establish the level of environmental safety. The transition between the three circuits is not a voluntary choice: it is the result of this evaluation. For the fascinator, working with the subject's neuroception — through gaze, voice, touch, posture, and proxemics — is the main operational mechanism of state induction.

== Recognitions in Historical Traditions ==

The anatomical identification of the three circuits — which makes the polyvagal theory a specifically twentieth-century model — was not available to previous traditions. However, the functional description of the same three modalities of the living being — warm active expansion, fluid mediation, stable containment — is an anthropological constant documented in independent traditions and distant eras:

* '''Yoga and Sāṃkhya''': the three ''[[w:Guna|guṇa]]'' — ''rajas'' (activation, movement, passion), ''sattva'' (clarity, balance, mediating intelligence), ''tamas'' (stable inertia, containment, grounding). See [[Guna e Tria Prima]] for the precise comparison.
* '''Ayurveda''': the three ''[[w:Dosha|doṣa]]'' — ''vāta'' (movement, wind), ''pitta'' (heat, transformation), ''kapha'' (stability, structure).
* '''Traditional Chinese medicine''': the triad of ''[[w:Three Treasures (traditional Chinese medicine)|jing-qi-shen]]'' and the operational organization of the three [[Il Respiro Tripartito e i Tre Campi di Cinabro|dantian]].
* '''Paracelsian alchemy and European Hermeticism''': the [[Tria Prima]] (Sulfur, Mercury, Salt), articulated in the [[Sei tipi caratteriali del Paret Method|six character types]] of the Method through binary combination.
* '''Contemporary Enneagram''': the three centers (head, heart, gut) of the Naranjo and Riso-Hudson school.
* '''Hesychast Patristics''': the triad ''[[w:Nous|nous]]'' / ''[[w:Thymos|thymos]]'' / ''[[w:Epithymia|epithymia]]'' (intelligence, ardor, desire) as planes of the guarded heart.

These convergences do not reduce one tradition to another. They show that the ternary structure of the autonomic nervous system that Porges identifies anatomically is a structure recognized — with different levels of technical articulation — by every tradition that has developed a systematic observation of the living being.

== Relevance for the Paret Method ==

The polyvagal theory is central to the third axis of the Method for three converging reasons:

# It provides the neurophysiological reading of historically documented fascination: what [[Prof. Jules Bernard Luys — La Fascinazione Terapeutica alla Charité|Luys describes in 1890]] at the Charité — anesthesia, catalepsy, conscious automatism — is readable as a specific configuration of polyvagal transitions.
# It allows reading human typologies ([[Sei tipi caratteriali del Paret Method|six types]], [[Tria Prima]], [[Otto fissazioni|Eight Fixations]], enneagrams) as stable polyvagal configurations rather than as abstract categories.
# It provides measurable operational tools (HRV, vagal tone, respiratory modulation) for practice and training.

In-depth entries: [[Polyvagal Theory]] · [[La Scala di Luys e la Teoria Polivagale di Porges]] · [[Fascinazione e Teoria Polivagale — Luys 1890 e Porges 1994]] · [[Ipnosi, Teoria Polivagale e Liberazione Somatica]] · [[I sei tipi caratteriali nella mappa polivagale]] · [[Polyvagal Theory and Trauma]] · [[Polyvagal Theory and Magnetic Passes]] · [[Touch e sistema nervoso autonomo]].

== Related Entries ==

* [[CNV, Polivagale e Neurologia Interna — Introduzione]] — index page of the third axis
* [[Stato Fascinatorio]] — the historically described trance configuration
* [[Presenza Integrale]] — the base state of the Method in a ventral vagal key
* [[Neuroni specchio|Mirror neurons]] — the other neuroscientific pillar of the third axis
* [[Wilhelm Reich]] — the precursor of the bodily reading of autonomic states
* [[Default mode network]] — the brain network complementary to the polyvagal model

[[Categoria:CNV, Polivagale e Neurologia Interna]]

Teoria polivagale/en - Cronologia

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