Effect of the 1800 MHz-RF exposure on in vitro neuronal networks activity: role of the modulation frequency

摘要

In a previous study, we reported a clear decrease in bursting rate of neuronal cultures under RF-1800 MHz exposure. The amplitude of the effect was greater with the GSM-1800 MHz signal compared to the CW signal. The present work aimed at assessing the contribution of the modulation frequency of the pulsed RF signal in the elicitation of the effect. We tested different multiples of the GSM modulation frequency (108.5; 217; 434 and 868 Hz) at the same averaged SAR level (2.4 W/kg). The preliminary results show that the effect was present for the GSM frequency (217 Hz) but not for other frequencies. Further work is ongoing to elucidate the mechanism of this effect.