The Polyvagal Theory

The Polyvagal Theory: Neurophysiological Foundations of Emotions, Attachment, Communication, and Self-regulation (Norton Series on Interpersonal Neurobiology) Paperback

Author: Visit Amazon's Stephen W. Porges Page - ISBN: B006ZCBQYQ - Language: English - Format: PDF, EPUB

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• ASIN: B006ZCBQYQ

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25 Reviews The Polyvagal Theory Neurophysiological Foundations of Emotions Attachment Communication and Self regulation Norton Series on Interpersonal Neurobiology The Polyvagal Theory Neurophysiological Foundations of Emotions Attachment Communication and Self regulation Norton Series on Interpersonal Neurobiology Hardcover Neurophysiological Foundations of Emotions Norton Series on Interpersonal Neurobiology The Polyvagal Theory Neurophysiological Foundations of The Polyvagal Theory Neurophysiological Foundations Norton Series on Interpersonal Neurobiology attachment communication and self regulation for ISBN 0393707008 The Polyvagal Theory Neurophysiological Foundations Of Emotions Attachment Communication And Self regulation Norton Series On The Polyvagal Theory Neurophysiological Foundations Norton Series on Interpersonal Neurobiology attachment communication and self regulation The Polyvagal Theory Neurophysiological Foundations of Emotions Attachment Communication Norton Series on Interpersonal Neurobiology Remembering Gabriel Garc a M rquez 1927 2014 Disney 39 s Frozen Now Available on DVD and Blu ray FREE Express Shipping Save in Stores with MembershipThe Polyvagal Theory Neurophysiological Foundations of Emotions Attachment Norton Series on Interpersonal Neurobiology The Polyvagal Theory gives a thorough overview of Sephen Porges research and theoretical contribution to science A n important foundational book

I am merely a psychology-degree wielding 24 year old with a natural curiosity for anything that influences behavior. This theory, developed by Steven Porges over 40 years of research, is one of the most comprehensive examinations of the influence of the vagus nerves on the physiological and psychological functioning of humans. The theory hinges on the idea that there are three components of the autonomic nervous system (ANS): the reptilian unmyelinated vagus branch, the sympathetic nervous system, and the myelinated neomammalian vagus branch. These branches, in order, correlate to different behavioral responses. The unmyelinated controls homeostatic functions as well as the "freeze" response. As such it develops first, in utero. The sympathetic nervous system, through the spinal cord, controls fight/flight responses by activating the pituitary-adrenal-hypothalamic axis. Finally, exclusive to mammals is the myelinated vagus which acts primarily to control the heart rate via connections to the sinoatrial node of the heart. These components of the ANS act in phylogenetic order, so the myelinated vagus inhibits functioning of the sympathetic nervous system, which inhibits the unmyelinated vagus.

The focal point of Porges' book is that the development of the myelinated vagus, originating in nuclei called the nucleus ambiguus, is crucial to inhibiting the fight/flight/freeze responses in response to environmental stimuli. The assessing of risk in the environment, which he calls neuroception, is regulated unconsciously and the myelinated vagus helps to resist primal behavioral responses. The strength of the myelinated vagus can be measured using respiratory sinus arrhythmia (RSA), which is an indication of beat-to-beat heart rate variability.

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