our ventral vagus, if we need to engage and connect with others. ![]() our parasympathetic system, if we need to rest and digest.our sympathetic system, if we need to fight or flee.When we encounter threat, it adapts its response - and consequently our behaviour - to our circumstances.ĭepending on our circumstances, it may activate: Our nervous system is a fine tuned, sophisticated system designed to ensure our survival. Intimacy: freeze response tempered by our social engagement system.Rough housing/play/wrestling: fight or flight tempered by our social engagement system.Sometimes, the social engagement system tempers the other two (fight-flight and freeze) to create situations of safety.links to our reptilian brain (limbic system).links to our mammalian brain (limbic system).part of our parasympathetic nervous system.links to our prefrontal cortex and mammalian brain (limbic system).The polyvagal theory reframes our understanding of the autonomic nervous system as comprising (in descending chronological evolutionary order):.It ensures our survival, as mammals depend on connection with other mammals to thrive.This system is linked to our mammalian brain.It also has a social engagement system, mediated by the ventral vagus (hence poly-vagal), which allows for social engagement and connection with others in a constructive way when we feel safe.This is our most primal threat response, and comes from the most primitive part of our brain, our reptilian brain.It also has a freeze or shutdown mode, mediated by the dorsal vagus, which allows us to freeze and immobilise when we are in danger but can neither fight nor flee (such as during childhood abuse).His research shows that the parasympathetic system has more to it than the rest and digest mode.Stephen Porges has developed a more nuanced understanding of the autonomic nervous system. The autonomic nervous system and the polyvagal theory Both sympathetic and parasympathetic are essential to keeping us safe.The parasympathetic regulates our rest and digest response (which enables us to recover, regenerate and digest our food).The sympathetic regulates our fight and flight response (which enables us to either fight, or run when in danger).The autonomic nervous system is divided into two systems: the sympathetic, and the parasympathetic The autonomic nervous system’s job is to keep us safe and alive. What does the autonomic nervous system do? When we talk of a dysregulated nervous system, we are referring to the autonomic nervous system, which causes us to think, feel and behave in ways that are driven by unconscious patterns and which generate automatic responses. the autonomic, or involuntary component (which regulates certain body processes such as blood pressure, breathing, heart beat that work without conscious effort)” Nervous System: Facts, Function & Diseases By Kim Ann Zimmermann – Live Science Contributor Febru.the somatic, or voluntary, component (which consists of nerves that connect the brain and spinal cord with muscles and sensory receptors in the skin).“The nervous system has two main subdivisions:.the peripheral nervous system (sensory neurons, ganglia (clusters of neurons) and nerves that connect to one another and to the central nervous system)” Nervous System: Facts, Function & Diseases By Kim Ann Zimmermann – Live Science Contributor Febru.the central nervous system (made up of the brain, spinal cord and nerves). ![]() ![]()
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