[HTML][HTML] Fundamental challenges and likely refutations of the five basic premises of the polyvagal theory

P Grossman - Biological Psychology, 2023 - Elsevier
The polyvagal collection of hypotheses is based upon five essential premises, as stated by
its author (Porges, 2011). Polyvagal conjectures rest on a primary assumption that brainstem …

[HTML][HTML] The vagal paradox: A polyvagal solution

SW Porges - Comprehensive psychoneuroendocrinology, 2023 - Elsevier
Although there is a consistent literature documenting that vagal cardioinhibitory pathways
support homeostatic functions, another less frequently cited literature implicates vagal …

[HTML][HTML] The multibranched nerve: vagal function beyond heart rate variability

JM Karemaker - Biological Psychology, 2022 - Elsevier
This paper reviews the many functions of the vagus nerve, to understand how they interact in
daily life and what might be accomplished by therapeutical electrical stimulation. A short …

In vivo recordings from the human vagus nerve using ultrasound‐guided microneurography

MM Ottaviani, L Wright, T Dawood… - The Journal of …, 2020 - Wiley Online Library
Key points The vagus nerve is the largest cranial nerve and innervates many structures in
the neck, thorax and abdomen. Although single‐unit recordings from the vagus nerve have …

Glucagon-like peptide-1 (GLP-1) mediates cardioprotection by remote ischaemic conditioning

MV Basalay, S Mastitskaya, A Mrochek… - Cardiovascular …, 2016 - academic.oup.com
Aims Although the nature of the humoral factor which mediates cardioprotection established
by remote ischaemic conditioning (RIc) remains unknown, parasympathetic (vagal) …

Brainstem sources of cardiac vagal tone and respiratory sinus arrhythmia

DGS Farmer, M Dutschmann, JFR Paton… - The Journal of …, 2016 - Wiley Online Library
Key points Cardiac vagal tone is a strong predictor of health, although its central origins are
unknown. Respiratory‐linked fluctuations in cardiac vagal tone give rise to respiratory sinus …

Cardiac vagus and exercise

AV Gourine, GL Ackland - Physiology, 2019 - journals.physiology.org
Lower resting heart rate and high autonomic vagal activity are strongly associated with
superior exercise capacity, maintenance of which is essential for general well-being and …

Optogenetic stimulation of vagal efferent activity preserves left ventricular function in experimental heart failure

A Machhada, PS Hosford, A Dyson, GL Ackland… - Basic to Translational …, 2020 - jacc.org
Large clinical trials designed to test the efficacy of vagus nerve stimulation (VNS) in patients
with heart failure did not demonstrate benefits with respect to the primary endpoints. The …

Closed-loop vagus nerve stimulation for the treatment of cardiovascular diseases: state of the art and future directions

MM Ottaviani, F Vallone, S Micera… - Frontiers in …, 2022 - frontiersin.org
The autonomic nervous system exerts a fine beat-to-beat regulation of cardiovascular
functions and is consequently involved in the onset and progression of many cardiovascular …

Vagal determinants of exercise capacity

A Machhada, S Trapp, N Marina, RCM Stephens… - Nature …, 2017 - nature.com
Indirect measures of cardiac vagal activity are strongly associated with exercise capacity, yet
a causal relationship has not been established. Here we show that in rats, genetic silencing …