Modifications of Motor Asymmetry in Rats under the Influence of Low-Intensity Extra High-Frequency Electromagnetic Radiation in the Norm and under Stress Conditions
- 18 Downloads
Abstract
We studied modifications of motor asymmetry in rats with different motor lateralization (dextrals, sinistrals, and ambidextrals) induced by low-intensity extra high-frequency (EHF) electromagnetic radiation (EMR), hypokinetic stress, and their combination. It was found that the development of hypokinetic stress in rats induced by limitation of their mobility results in a considerable decrease of the coefficient of motor asymmetry (up to inversion of its sign); this can be related to a decrease in the resistivity to stressing and adaptability of the organism to the influence of external factors. The influence of EHF EMR on the animals under conditions of both normal and limited motor activity resulted in an increase in the index of motor lateralization in animals of all phenotypic groups under study; probably, this helped to increase the adaptive capabilities of the organism.
Keywords
extra high-frequency electromagnetic radiation hypokinetic stress interhemisphere asymmetry coefficient of motor asymmetryPreview
Unable to display preview. Download preview PDF.
REFERENCES
- 1.E. B. Bourlakova, “Effect of extra-low doses,” Vestn. Russ. Akad. Nauk, 64, No.5, 425–431 (1994).Google Scholar
- 2.O. V. Betskii, N. D. Devyatkov, and V. V. Kislov, “Millimeter waves of low intensity in medicine and biology,” Zarubezhn. Radioelectron., No. 12, 3–15 (1996).Google Scholar
- 3.E. M. Chuyan, Neuroimmunoendocrine Mechanisms of Adaptation to the Effects of Low-Intensity Extra High-Frequency Electromagnetic Radiation [in Russian], Abstr. of Doctoral Thesis, Biol. Sci., Kyiv (2004).Google Scholar
- 4.N. N. Lebedeva and T. I. Kotrovskaya, “Experimental/clinical studies of millimeter length (a review, Part 1)”, Millimeter Waves Biol. Med., 15, No.3, 3–15 (1999).Google Scholar
- 5.V. V. Vorob'yov, A. B. Gapeev, S. A. Neiman, et al., “Frequency composition of EEG of symmetric regions of the rabbit cortex and hippocampus under the influence of EHF EMR on an acupuncture zone,” Vest n. Nov. Med. Technol., 6, No.1, 23–27 (1999).Google Scholar
- 6.A. V. Sidorenko and V. V. Tsaryuk, “Effect of microwaves on interhemisphere asymmetry of the brain in unanesthetized rats,” Millimeter Waves Biol. Med., 24, No.3, 9–12 (2001).Google Scholar
- 7.V. L. Bianki, Mechanisms of the Paired Brain [in Russian], Nauka, Leningrad (1989).Google Scholar
- 8.G. P. Udalova and V. V. Mikheev, “On the involvement of hemispheres in the formation of spatial/motor asymmetry at visual identification in rats,” Zh. Vyssh. Nerv. Deyat., 38, No.3, 467–474 (1988).Google Scholar
- 9.L. L. Klimenko, A. I. Deev, O. V. Protasova, et al., “Systemic organization on functional interhemisphere asymmetry. A mirror of the asymmetry,” Biofizika, 44, No.5, 916–920 (1999).PubMedGoogle Scholar
- 10.E. A. Kovalenko and N. N. Gurovskii, Hypokinesia [in Russian], Meditsina, Moscow (1980).Google Scholar
- 11.V. V. Abramov and T. Ya. Abramova, Asymmetry of the Nervous, Endocrine, and Immune Systems [in Russian], Nauka, Novosibirsk (1996).Google Scholar
- 12.M. Yu. Egorov, Functional Asymmetry of the Brain and the Importance of the Development of a Clinical Direction in Evolutionary Physiology [in Russian], Nauka, Saint Petersburg (2000).Google Scholar
- 13.A. V. Vasil'yeva, A. V. Chernositov, and K. Yu. Sagamonova, “Peculiarities of interhemisphere asymmetry of the brain in physiological and induced pregnancy,” in: Proceedings of the Conference “Urgent Questions of Functional Interhemisphere Asymmetry,” Moscow (2000), pp. 5–7.Google Scholar
- 14.L. F. Volod'ko, M. M. Kirillov, and M. M. Orlova, “Dynamics of interhemisphere asymmetry of the brain in patients with bronchial asthma against the background of medication therapy,” Vestn. Nov. Med. Technol., 8, No.1, 30–33 (2001).Google Scholar
- 15.S. Diamond and G. Beaumont, “Hemispheric function and color naming,” J. Exp. Psychol., 96, 87–91 (1972).PubMedGoogle Scholar