|Distance between exposed object and exposure source||30 cm|
|Setup||Animals kept in the plexiglas box ( 17 x 11 x 20 cm) which was kept in the anechoic chamber.|
|Additional info||Rats with chronically implanted carbon electrodes in the symmetrical areas of the brain somesthetic cortex, a reference carbon electrode placed in the nasal bone.|
|power density||0.2 mW/cm²||maximum||unspecified||-||to 0.1 mW/cm²|
The hemispheric asymmetry in baseline EEG is identical in both the control and exposure experiments when the frequency spectra are averaged for 10-min period. The similarity between series is observed also in the successive 10-min periods. Thus, the irradiation does not cause any steady changes in the EEG asymmetry during the 10-min periods. A similar conclusion can be drawn from averaging the EEG frequency spectra for 1-min "field-on" and "field-off" periods. The influence of the microwave field on the EEG asymmetry was revealed when averaging of frequency spectra for 10-s periods was used. Compared to controls, the EEG hemispheric asymmetry in power of 10.5-14 Hz range increases significantly during the first 10-20 s after four from five onsets of the field. Under neither control nor pre- and postexposure conditions this effects was found. These data are discussed with respect to interaction of microwave fields with the EEG generators.