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To study the effects of radiofrequency electromagnetic fields on the brain physiology of adolescents.
Different studies have shown an influence of pulsed radiofrequency electromagnetic fields on the wake and sleep EEG in adults. In 2006, the WHO highlighted that further radiofrequency electromagnetic field provocation studies on children of different ages are required to estimate the risks, especially of mobile phone usage. Therefore, in the present study, adolescents were examined.
During exposure (low SAR (0.35 W/kg), high SAR (1.4 W/kg) or sham exposure at weekly intervals), 22 adolescents performed cognitive tasks. EEG was recorded during baseline (before exposure), immediately after, and 30 and 60 min after exposure.
周波数 | 900 MHz |
---|---|
タイプ |
|
ばく露時間 | continuous for 30 min |
Modulation type | cf. additional information, pulsed |
---|---|
Additional information |
GSM handset-like modulation |
ばく露の発生源/構造 |
|
---|---|
ばく露装置の詳細 | participants seated between two planar antennas (left active only); attached electrode leads (for EEG recording) oriented horizontally to the emitted field |
Sham exposure | A sham exposure was conducted. |
測定量 | 値 | 種別 | Method | Mass | 備考 |
---|---|---|---|---|---|
SAR | 1.4 W/kg | peak | - | - | - |
周波数 | 900 MHz |
---|---|
タイプ |
|
ばく露時間 | continuous for 30 min |
Modulation type | cf. additional information, pulsed |
---|---|
Additional information |
GSM handset-like modulation |
ばく露の発生源/構造 |
|
---|---|
Sham exposure | A sham exposure was conducted. |
測定量 | 値 | 種別 | Method | Mass | 備考 |
---|---|---|---|---|---|
SAR | 0.35 W/kg | peak | - | - | - |
No clear significant exposure-related effects on the waking EEG or cognitive functions were found in adolescents.
The data did not provide evidence for a higher sensitivity of adolescents to radiofrequency electromagnetic fields than adults.
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