ID Number		997
Study Type		Human / Provocation
Model		900 MHz (GSM) exposure to human volunteers and analysis of sleep and EEG
Details		Human volunteers (n=24) were exposed to 900 MHz GSM RF using standard mobile phones for 15 minutes at a power density of ~ 0.06 mW/cm2 (exposure in terms of SAR not defined). In the most recent study, the authors report exposure during sleep resulted in an increase in alpha EEG recordings and changes in the time of various sleep stages. In an earlier study, awake EEG changes were also reported due to exposure, which was more pronounced when the subject’s eyes were closed.
Findings		Effects
Status		Completed With Publication
Principal Investigator		Russian Academy of Sciences, Russia - N.Leb@relcom.ru
Funding Agency		Nat'l Res Prog, Russia
Country		RUSSIAN FEDERATION
References		Lebedeva, NN et al. Crit Rev Biomed Eng, (2001) 29:125-133 Lebedeva, NN et al. Crit Rev Biomed Eng, (2000) 28:323-337
Comments		Exposures were performed seemingly with the phone “hooked-up” to the network, without a constant test mode. Transmit power cannot be defined in this case. Further, the exposure was in the near field, and so the power density measure is not informative. In addition, it is not clear how the investigators controlled for possible currents induced by the RF emissions on the EEG leads themselves, possibly giving false readings.