Human Neurophysiological State in Long-term Isolation
- Authors: Kovaleva A.A.1, Skedina M.A.1, Potapov M.G.1
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Affiliations:
- Institute of Biomedical Problems
- Issue: Vol 43, No 7 (2017)
- Pages: 741-747
- Section: Article
- URL: https://journals.rcsi.science/0362-1197/article/view/177357
- DOI: https://doi.org/10.1134/S0362119717070106
- ID: 177357
Cite item
Abstract
During 520-day isolation in a confined space as an imitation of a long-term interplanetary flight, the neurofunctional condition of six crew members was examined using synchronous recording of electrical ( electroencephalogram) and energy (constant potential level) activities of the brain. Two background studies made it possible to predict high adaptability level of all crewmembers and low probability of adaptation reserve depletion in the course of the experiment. During isolation, the dynamics of neurofunctional correlates of cerebral activity generally corresponded to factors to which the crew was subjected during its activity. During the events significant for the crew, we observed physiological reactions in both metabolic and electrical activities of the brain. During the 54th week, the state of physiological adaptation of the crew to the experimental environment was observed, which was expressed in decreases in constant potential level (CPL), without interhemispheric asymmetry, and absolute α-power value. Throughout the experiment, none of crewmembers exhibited distinct stress reaction signs (α-activity asymmetry accompanied by a significant CPL decrease), which confirmed our prediction of a low probability of adaptation reserve depletion in the participants of the 520-day isolation study.
About the authors
A. A. Kovaleva
Institute of Biomedical Problems
Author for correspondence.
Email: aakovaleva@imbp.ru
Russian Federation, Moscow
M. A. Skedina
Institute of Biomedical Problems
Email: aakovaleva@imbp.ru
Russian Federation, Moscow
M. G. Potapov
Institute of Biomedical Problems
Email: aakovaleva@imbp.ru
Russian Federation, Moscow