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

• Published in: IOP conference series. Earth and environmental science 2019-05, Vol.263 (1), p.12034
• Main Authors: Yu Anikina, N, Gribanov, A V, Kozhevnikova, I S
• Format: Article
• Language: English
• Subjects: Acclimatization; Arctic zone; Brain; Climatic conditions; Cortex (frontal); Direct current; Economic conditions; EKG; Electrocardiography; Energy consumption; Energy metabolism; Heart rate; Ice environments; Metabolism; Nervous system; Occipital lobe; Parasympathetic nervous system; Polar environments; Scalp; Socioeconomics; Sympathetic nervous system; Temporal cortex; Young adults
• ISSN: 1755-1307; 1755-1315; 1755-1315
• DOI: 10.1088/1755-1315/263/1/012034

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.