Physiological Society Symposium — Vagal Control: From Axolotl to Man

  title={Physiological Society Symposium — Vagal Control: From Axolotl to Man},
  author={E. W. Taylor and M S Al-Ghamdi and I H Ihmied and T. Wang and Augusto Shinya Abe},
  journal={Experimental Physiology},
The phylogeny and ontogeny of autonomic control of the heart and cardiorespiratory interactions in vertebrates
The heart in vertebrate embryos possesses both muscarinic cholinergic and β-adrenergic receptors very early in development, suggesting that it may be coordinated with the onset of central respiratory rhythmicity and subsequent breathing.
The role of the vagus nerve in the generation of cardiorespiratory interactions in a neotropical fish, the pacu, Piaractus mesopotamicus
Injection of atropine abolished a normoxic inhibitory tonus on the heart and the fH adjustments during progressive hypoxia, confirming that they are imposed by efferent parasympathetic inputs via the vagus nerve.
The Mammalian Diving Response: Inroads to Its Neural Control
Defining the brainstem circuit for the mammalian diving response may open broad avenues for understanding the mechanisms of suprabulbar control of autonomic function in general, as well as implicate its role in some clinical states.
Pitfalls of assessment of autonomic function by heart rate variability
A review of the fundamental framework linking low-frequency and high-frequency components of heart rate variability with sympathetic and parasympathetic autonomic divisions and discusses the points that need attention in autonomic assessment by heart rates variability.
Cardiorespiratory interactions previously identified as mammalian are present in the primitive lungfish
The present illustration of an apparently highly evolved control system for HRV in a fish with a proven ancient lineage, based on paleontological, morphological, and recent genetic evidence, questions much of the anthropocentric thinking implied by some mammalian physiologists and encouraged by many psychobiologists.
Central- and autonomic nervous system coupling in schizophrenia
  • S. Schulz, M. Bolz, K. Bär, A. Voss
  • Psychology, Medicine
    Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2016
It is found that central–autonomic couplings (CAC) studying heart rate, blood pressure and electroencephalogram in paranoid schizophrenic patients were bidirectional and that the causal influence of central activity towards systolic blood pressure was more strongly pronounced than such causal influence towards heart rate in paranoid schizophrenia patients when compared with CO.
Hippocampal-Brainstem Connectivity Associated with Vagal Modulation after an Intense Exercise Intervention in Healthy Men
Exercise associated changes in anterior hippocampal function might be involved in increased vagal modulation of the cardiovascular system, according to the whole brain analysis.
Reduction of Autonomic Regulation in Children and Adolescents With Conversion Disorders
High autonomic arousal may be a precondition for generating conversion symptoms, and aberrant patterns of functional connectivity between motor areas and central arousal systems may be responsible for generating motor conversion symptoms.
Fear and the Defense Cascade: Clinical Implications and Management
The process of shifting the neural pattern is the necessary first step in unlocking the patient’s trauma response, in breaking the cycle of suffering, and in helping the patient to adapt to, and overcome, past trauma.


The role of CO2/pH chemoreceptors in ventilatory control.
It now appears that at least some members of all classes of vertebrates exhibit ventilatory responses to changes in CO2/pH per se, including fishes, and the situation is simpler in the higher vertebrates.
The evolution of efferent vagal control of the heart in vertebrates.
Activity in subpopulations of cardiac vagal motoneurons varies with the respiratory rhythm in fish and mammals due to central interactions between respiratory and cardiac vagals, and generates cardio-respiratory synchrony in dogfish and respiratory sinus arrhythmia in mammals.
Arterial O₂ Homeostasis during Diving in the Turtle Chelodina longicollis
It is suggested that C. longicollis can maintain constant arterial O₂ saturation during long periods of diving by periodically increasing pulmonary blood flow to transfer O⁂ stored in lung gas into blood perfusing the lungs.