Glossary // Glossary term Empirical
Vagal tone
The ongoing influence of the vagus nerve, the main parasympathetic pathway, on the heart and other organs. It cannot be recorded directly in humans and is usually estimated from heart rate variability indices that track breathing-related changes in heart rate. The neurovisceral integration model proposes that higher resting vagally mediated HRV is associated with more flexible emotion regulation; the evidence is largely correlational, and the indices are sensitive to breathing, posture and fitness. Allostasis and allostatic load, the cognitive control of emotion, the stress-buffering effects of social support and the use of music for mood regulation explain what a night of collective movement does for the body, and what it cannot change. Affective computing promises to infer emotion as if it were a system metric. The evidence on facial movements and autonomic signals, together with questions of consent, explains why every metric in this artifact is an artistic value. The works the definition rests on, with the level of evidence each was appraised at. (2017). Heart rate variability and cardiac vagal tone in psychophysiological research: Recommendations for experiment planning, data analysis, and data reporting. doi:10.3389/fpsyg.2017.00213 Supports the claims that HRV indexes cardiac vagal tone and that its findings are easily misconstrued without careful design, analysis and reporting. Methods guidance, not evidence about emotion categories. (2000). A model of neurovisceral integration in emotion regulation and dysregulation. doi:10.1016/S0165-0327(00)00338-4 Cited for the proposal that vagally mediated heart rate variability is associated with flexible emotion regulation through a network linking prefrontal and autonomic function. A theoretical model; supporting studies are largely correlational.Where the site uses it
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