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Vagal tone research has the potential to offer insight into social behavior, social interactions, and human psychology. Much of this work has been focused on newborns and children . [ 26 ] Baseline vagal tone can be used either as a potential predictor of behavior or as a signal of mental health (particularly emotion regulation , anxiety , and ...
A vagal maneuver is an action used to stimulate the parasympathetic nervous system by activating the vagus nerve. The vagus nerve is the longest nerve of the autonomic nervous system and helps regulate many critical aspects of human physiology, including heart rate, blood pressure, sweating, and digestion through the release of acetylcholine .
Because vagal tone can reduce heart rate, VNS carries the risk of bradycardia (excessively slow heart rate, and even of stopping the heart. [ 43 ] A range of side effects are possible but rare.
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His research has shown that experiences of awe are also linked to elevated vagal tone, “a marker of the activation of the vagus nerve, which is this large bundle of nerves that really helps you ...
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Flexible PNS activity, indexed by vagal tone, helps regulate the heart rate and has been linked to a healthy stress response as well as numerous positive health outcomes. [45] Vagal tone has been found to predict both positive emotions and social connectedness, which in turn result in increased vagal tone, in an "upward spiral" of well-being. [46]
Vagovagal reflex refers to gastrointestinal tract reflex circuits where afferent and efferent fibers of the vagus nerve [1] coordinate responses to gut stimuli via the dorsal vagal complex in the brain. The vagovagal reflex controls contraction of the gastrointestinal muscle layers in response to distension of the tract by food.