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The Polyvagal Theory was proposed in 1994 by Stephen Porges during his tenure as director of the Brain-Body Center at the University of Illinois at Chicago. [16] The theory explores the structure and function of the vagus nerve , emphasizing its two efferent branches originating in the medulla oblongata .
The dynamic energy budget (DEB) theory is a formal metabolic theory which provides a single quantitative framework to dynamically describe the aspects of metabolism (energy and mass budgets) of all living organisms at the individual level, based on assumptions about energy uptake, storage, and utilization of various substances.
Stephen W. Porges (born 1945) is an American psychologist.He is the Professor of Psychiatry at the University of North Carolina at Chapel Hill. [1] Porges is currently the Director of the Kinsey Institute Traumatic Stress Research Consortium at Indiana University Bloomington, [2] which studies trauma.
Stephen Porges' polyvagal theory claims that the vagus nerve system is central to connecting these clusters. [ 14 ] Siegel's model of the brain attempts to simplify the complexity of brain formation in emphasizing interaction between the brainstem , limbic systems ( hippocampus and amygdala ) and middle prefrontal cortex .
Many of the Polyvagal theory tenets incorporated in the Somatic Experiencing training are controversial and unproven. The SE therapy concepts such as "dorsal vagal shutdown" with bradycardia that are used to describe "freeze" and collapse states of trauma patients are controversial since it appears the ventral vagal branch, not the dorsal vagal ...
According to the Polyvagal theory developed by Dr. Stephen Porges, the "Social Nervous System" is an affiliative neurocircuitry that prompts affiliation, particularly in response to stress. [2] This system is described as regulating social approach behavior. A biological basis for this regulation appears to be oxytocin. [3]
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Vegetotherapy relies on a theory of stored emotions, or affects, where emotions build tensions in the structure of the body. This tension can be seen in shallow or restricted breathing, posture, facial expression, muscular stress (particularly in the circular muscles [ 10 ] ), and low libido .