Experimental estimation of the central nervous system's responses to the exposure with pulsed-modulated electromagnetic irradiation of low intensity

The influence of low intensity (10-100 µW/sm2) pulsed electromagnetic radiation (EMR) to the adaptive behavior of animals and reactivity of the central nervous system was studied in experiments with mice and Wistar rats. The choice of the pulsed parameters was based on the theoretical prerequisite related with the possibility of the production of the compression-expansion waves in cell membrane in accordance with resonance type and the change of separate neuron function in the condition of self-oscillating periodical activity of neural network. Regimes of monochromatic modulation of EMR were investigated within the frequence range of periodic neural brain activity (EEG). Significant effects of EMR on the central nervous system were detected. Transient decrease in the trainability both in the labyrinth and escape behavior methods, the disturbance in the process of consolidation of acquired habit in a long-term memory, the change in the structure of locomotors pattern, the rise in the reactivity to narcotic substances were revealed in animals. Non-linear relationship between the central nervous system responses and EMR intensity was established. Frequency-energetic ranges, within which the most negative effect was observed, were discovered.