Archives → 2019 → Vol. 59, No. 6 → pp. 619-626
Article
Influence of Multiple and Chronic Exposure to Electromagnetic Radiation of the Mobile Communication frequency Range on the Behavior and Cognitive Functions of the Rat Brain
L. N. Pavlova*, O. I. Kolganova, O.S. Izmestyeva, V.V. Panfilova, L.P. Zhavoronkov
А. Tsyb Medical Radiological Research Center – branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, Obninsk
Abstract
In three series of experiments on Wistar rats the influence of three-fold (4–5 days), four-fold (1 time per week) and chronic (40 sessions of 2 hours per day) effects of broadband low-intensity pulse-modulated electromagnetic field on the production, consolidation and reproduction of conventional defensive avoidance reflex was studied. The parameters of electromagnetic radiation exposure in all cases were chosen in accordance with the actual functioning of mobile communication in the conditions of modern overload ( «pollution») of the biosphere by electromagnetic fields. Irradiation was carried out in an anechoic chamber using a different number of carriers (3, 9 and 10) from a block of generators with frequencies from 1 to 4 GHz, with a total PPE pulse of 300 mW/cm2, pulse duration of 25 MS and modulating swiped pulse in the EEG frequency range (from 1 to 6 Hz). Anomalous phenomena in the form of cognitive impairment, instability of behavior in the learning process, deviations from the short-term and long-term memory are revealed. The impact of electromagnetic radiation on the Central nervous system can be multidirectional, which ultimately adversely affects the learning process. These phenomena are transient and do not reach the level of high clinical significance. It is shown that pre-repeated testing ( «training») smoothes the negative effect of chronic exposure to electromagnetic radiation and accelerates the adaptation process.
Keywords
Wistar rats, chronic irradiation, low-intensity non-ionizing radiation, mobile frequency range, Shuttle box, behavior, conditioned defensive reflex, training
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