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To investigate the possible effects of the electromagnetic fields on the human cerebral functions using a commercial GSM mobile phone.
In this study 52 subjects (aged 20 to 38) were investigated.
|ばく露時間||continuous for 10 min|
|Repetition frequency||217 Hz|
random GSM signal
|Distance between exposed object and exposure source||45 cm|
|チャンバの詳細||The RF-absorbing material had a return loss better than -20 dB above 450 MHz. The furniture in the room was made from wood.|
|ばく露装置の詳細||The mobile phone was held by a plastic holder with the monopole antenna positioned horizontally above the head of the subject sitting in an armchair.|
|Sham exposure||A sham exposure was conducted.|
|Additional information||The EEG was recorded in three sections of 10 min each with exposure in the middle section. The neuropsychological tests were performed on subsequent days with or without exposure. The tests were carried out incompletely double-blind. Interference of the exposure field with the EEG recording was avoided by selecting a higher sampling rate at 500 Hz.|
No significant impact of the electromagnetic field on the human EEG as well as on the cognitive performance could be observed.