Energy metabolism of the brain in the inhabitants of the arctic zone, depending on the prevalence of vegetative tonus

Arctic Biomonitoring

Yu Anikina, N.^1 ; Gribanov, A.V.^1^2 ; Kozhevnikova, I.S.^1

Northern State Medical University, Troitskiy Ave. 51, Arkhangelsk

163000, Russia^1

Lomonosov Northern (Arctic) Federal University, Institute of Medico-biological Researches, Nab. Severnoy Dviny 17, Arkhangelsk

163002, Russia^2

关键词: Climatic conditions;    Constant Potential;    Energy metabolism;    Heart rate variability;    Parasympathetic nervous systems;    Physiological mechanisms;    Socio-economic conditions;    Sympathetic nervous systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/263/1/012034/pdf
DOI  :  10.1088/1755-1315/263/1/012034

来源: IOP

【 摘 要 】

The study of the physiological mechanisms of human acclimatization to extreme climatic conditions seems to be an urgent task in the current socio-economic conditions of the development of the Arctic territories. The purpose of the study is to determine cerebral energy metabolism in young people in the Arctic region with a different initial autonomic tone. Cerebral energy consumption and heart rate variability were studied in 103 young people (mean age 19 ± 0.22) constantly residing in Arkhangelsk. Research of the energy metabolism of the brain was carried out using the direct current (DC) potential recorded from the scalp. The study of the vegetative regulation of heart rhythm was carried out by cardiac rhythmography with registration of the background electrocardiogram at rest. High values of DC potential were registered in frontal cortex in the group of participants with a predominance of sympathetic nervous system influences. In the group of participants with a predominance of the effects of the parasympathetic nervous system, an increased level of constant potential in occipital cortex, with a decrease DC potential in the temporal and the frontal areas.