scholarly journals Heart Rate Variability: An Index of the Brain-Heart Interaction

Tachycardia ◽  
10.5772/25763 ◽  
2012 ◽  
Author(s):  
Ingrid Tonhajzerova ◽  
Igor Ondrejka ◽  
Zuzana Turianikova ◽  
Kamil Javorka ◽  
Andrea Calkovska ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
The Brain

A Case Report on Heart Rate Variability Biofeedback and Postconcussion Syndrome: Healing the Autonomic Nervous System

Biofeedback ◽  
2021 ◽  
Vol 49 (4) ◽  
pp. 86-88
Author(s):  
Leah M. Lagos
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
High Amplitude ◽  
Regulatory Control ◽  
Control Mechanisms ◽  
Postconcussion Syndrome ◽  
Heart Rate Variability Biofeedback ◽  
The Mind ◽  
The Brain ◽  
Cardiovascular Functions

Postconcussion syndrome is a devastating condition of the mind, body, and even personality. Mounting research demonstrates that heart rate variability biofeedback can help the concussed individual in three critical ways: (a) eliciting high amplitude oscillations in cardiovascular functions and thereby strengthening self-regulatory control mechanisms; (b) restoring autonomic balance; and (c) increasing the afferent impulse stream from the baroreceptors to restore balance between inhibitory and excitatory processes in the brain.

scholarly journals Heart rate variability, the dynamic nature of the retinal microvasculature and cardiac stress: providing insight into the brain–retina–heart link: the SABPA study

Eye ◽  
2019 ◽  
Vol 34 (5) ◽  
pp. 835-846
Author(s):  
Annemarie Wentzel ◽  
Leoné Malan ◽  
Roland von Känel ◽  
Wayne Smith ◽  
Nicolaas T. Malan
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Dynamic Nature ◽  
Cardiac Stress ◽  
Retinal Microvasculature ◽  
The Brain ◽  
Insight Into

scholarly journals Correlation between Heart Rate Variability and Claustrum Stimulation – Hypothesis, Experimental Studies and Future Perspectives

2021 ◽  
Vol 31 (3) ◽  
pp. 529-536
Author(s):  
Bogdan PAVEL ◽  
◽  
Mihaela Roxana POPESCU ◽  
Carmen-Denise-Mihaela ZAHIU ◽  
Patricia Demetria POPOVICI ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Experimental Studies ◽  
Insular Cortex ◽  
Long Term Effects ◽  
Cardiovascular Prognosis ◽  
External Capsule ◽  
Motor Effects ◽  
The Brain

Heart rate variability (HRV) has long been associated with cardiovascular risk, especially after a myocardial infarction, but also in general. HRV refl ects and is used as a surrogate for the balance between sympathetic and parasympathetic systems in modulating the cardiovascular activity. A low HRV, traditionally associated to sympathovagal imbalance, is associated with a worse cardiovascular prognosis. Deep brain stimulation (DBS) is a surgical technique used for severe cases of Parkinson’s disease and other neurologic pathologies. DBS is performed in various areas of the brain and through different protocols. The claustrum, an area located between the external capsule and the insular cortex, was recently shown to be connected to Parkinson’s motor symptoms. As DBS in other regions of the brain has proven non-motor effects, like infl uencing the HRV, we sought to document the effect of claustrum stimulation on the sympatho-vagal balance (SVB). Our preliminary data indicates that claustrum stimulation inclines the SVB toward the latter, but more studies are required to observe the long-term effects of this type of stimulation.

The Effects and Benefits of Singing Individually and in a Group

2018 ◽  
pp. 918-934
Author(s):  
Töres Theorell
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Lung Function ◽  
The Body ◽  
Tnf Alpha ◽  
Long Term Effects ◽  
Regenerative Activity ◽  
The Brain ◽  
Regular Practice

This chapter is devoted to the biology of singing. Immediate effects have been extensively scientifically studied. Breathing and its synchronization with heart rate variability has been an important theme. Endocrine (endorphins, oxytocin, cortisol, testosterone) and immunological (TNF alpha, fibrinogen, immunoglobulines) reactions have also been studied during singing. In collective singing, cohesiveness is a major factor. Singing in a group during a choir rehearsal has stronger stimulation effects on oxytocin secretion than chatting in the same group. High levels of oxtytocin coincide with strong feelings of cohesiveness. In addition, oxytocin dampens anxiety and pain. Long-term effects of singing training and regular practice have been less extensively studied but there is evidence that singing training may influence such things as the brain´s development, the ability to synchronize heart and lung function, and the level of regenerative activity in the body.

Heart rate variability, a target for the effects of angiotensin II in the brain of the trout Oncorhynchus mykiss

2002 ◽  
Vol 947 (1) ◽  
pp. 34-40 ◽  
Author(s):  
Jean-Claude Le Mével ◽  
Nagi Mimassi ◽  
Frédéric Lancien ◽  
Dominique Mabin ◽  
Jean-Marc Boucher ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Angiotensin Ii ◽  
Oncorhynchus Mykiss ◽  
The Brain

scholarly journals SPECIFICS OF HEART RATE VARIABILITY AND PARAMETERS OF ELECTROENCEPHALOGRAPHY IN PATIENTS WITH ARTERIAL HYPERTENSION

2014 ◽  
Vol 13 (6) ◽  
pp. 12-17
Author(s):  
M. Kh. Kurdanova ◽  
M. A. Umetov ◽  
I. A. Beslaneev ◽  
L. M. Batyrbekova ◽  
Kh. A. Kurdanov
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Arterial Hypertension ◽  
Healthy Volunteers ◽  
Clinical Examination ◽  
Nonparametric Statistics ◽  
Bipolar Electrodes ◽  
Frequency Field ◽  
The Brain ◽  
Parametric And Nonparametric Statistics

Aim. Investigation of heart rate variability parameters (HRV), α- & β-rhythms of electroencephalography (EEG) and their interrelations in patients with arterial hypertension (AH).Material and methods. Totally 55 persons studied at the age 35-64 y.o. – 35 pts. with AH 2 stage and 20 healthy volunteers. All patients underwent clinical examination, including HRV and EEG. The HRVs were determined in frequency field of shared specter (SS) — VLF, LF, HF and static values – dynamic digits SDNN, SDANN and CV etc. EEG was done at 21-lead pattern with mono- and bipolar electrodes. The data obtained was processed by the parametric and nonparametric statistics software.Results. HRV parameters — SS, VLF, LF and SNDD were significantly decreased in the group of AH patients. Among HRV parameters (TP, VLF, LF, HF) and frequency and amplitude EEG values were found correlational linkages more prominent in AH patients.Conclusion. The data obtained witnesses close interconnections and relationships of HRV, bioelectricity of the brain and hemodynamic in patients with AH. 

scholarly journals The Glymphatic Influx and Slow Delta Waves in Sleep and Anesthesia

2019 ◽  
Author(s):  
J. Shashi Kiran Reddy ◽  
Sisir Roy
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Neuronal Activity ◽  
Rem Sleep ◽  
Recent Observation ◽  
Clinical Implications ◽  
Delta Waves ◽  
One Step ◽  
The Brain ◽  
Delta Oscillations

Investigation of the mechanisms and pathways of waste clearance in the brain has received much attention lately because of their functional significance and clinical implications (1,2). In a recent study (3), Hablitz et al. made an attempt to bring us one step forward in tackling the puzzling question of how and when the brain clears its waste. Here, the authors studied the influence of different anesthetics (known to emulate sleep like conditions) on the glymphatic influx, which subsequently promotes waste clearance. It is the first study to demonstrate that the rate of glymphatic influx can be correlated to the prevalence of high EEG delta power and low heart rate variability. This relation also seems to vary uniquely based on the type of anesthetic substance administered. Analyzing the findings, they propose that the prevalence of the slow delta waves of highly synchronized neuronal activity promotes glymphatic influx. But we suggest, while assigning such role to the delta waves alone, findings may benefit if analyzed and interpreted in relation to a recent observation of the presence of regional delta oscillations in REM sleep; which hitherto is considered as the characteristic hallmark of non-REM sleep (4).

scholarly journals Correlation between vegetative dysfunction and cognitive impairment in patients with chronic ischemia of the brain

2008 ◽  
Vol 7 (5-1) ◽  
pp. 246-248
Author(s):  
T. V. Mokina ◽  
D. A. Doschannikov ◽  
Ye. A. Аntipenko ◽  
A. V. Gustov
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Cognitive Impairment ◽  
Mental State ◽  
Mini Mental State Examination ◽  
Chronic Ischemia ◽  
Adrenal System ◽  
Moderate Cognitive Impairment ◽  
State Examination ◽  
The Brain

The purpose of present research is to estimate the correlation between vegetative dysfunction and cognitive impairment in patients with chronic ischemia of the brain. We supervised 112 patients with chronic ischemia of the brain. To determine cognitive impairment we used Mini Mental State Examination scale. To determine vegetative dysfunction we used A.M.Vayne's questionnaire. Also heart rate variability (HRV) examination was carried out. All the patients were divided into 2 groups depending on expressiveness of cognitive impairment: light and moderate cognitive impairment. The expressed vegetative dysfunction was revealed according to A.M.Vejna's questionnaire and according to HRV in patients with moderate cognitive impairment. In patients with chronic ischemia of the brain with moderate cognitive impairment revealed shift of vegetative balance aside prevalence of hyperactivity of sympathetic adrenal system that is adverse the factor in progressing a chronic ischemia of a brain.

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