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1 Prace Naukowe Instytutu Telekomunikacji i Akustyki Politechniki Wrocławskiej. Konferencje

1 2001

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Wstępne badania doświadczalne wpływu promieniowania mikrofalowego na elektrofizjologię ślimaka świnki morskiej

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Michalski W. , Preś K. , Pośpiech L.

tom Vol. 83, nr 27

341-346

It is well known that mechanical trauma, excess noise level, vibrations, some kinds of antibiotics can cause hearing injuries of different intensity. Lack of informations on influence of electromagnetic radiation on the organ of hearing. An experiment with microwave radiation (MR) of 10,5 GHz frequency has been described in the paper. Twenty coloured guinea pigs were used in the experiment. Measure of electric activity of cochlea was level of cochlear microphonic (CM) induced by sinusoidal acoustic wave of the known frequency and intensity (in dB). The induced CM signals were measured prior to and after microwave irradiation in the same experimental condition. Thanks that the MR was the only factor which could change electric cochlea activity. Three animals were irradiated by 1 hour at power density of 0,3 mW/cm2. Decrease of the CM values was observed. Seventeeth animals were irradiated by 0,5 hour at power density 0,5 - 1 mW/cm2. In 13 causes essential drops of CM levels was observed. Further experiments will be follow this preliminary one.