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J Adv Res. 2013 Mar;4(2):181-7. doi: 10.1016/j.jare.2012.05.005. Epub 2012 Jun 25.

Non-thermal continuous and modulated electromagnetic radiation fields effects on sleep EEG of rats.

Author information

1
Biophysics Department, Faculty of Science, Cairo University, Giza, Egypt.
2
Zoology Department, Faculty of Science, Cairo University, Giza, Egypt.

Abstract

In the present study, the alteration in the sleep EEG in rats due to chronic exposure to low-level non-thermal electromagnetic radiation was investigated. Two types of radiation fields were used; 900 MHz unmodulated wave and 900 MHz modulated at 8 and 16 Hz waves. Animals has exposed to radiation fields for 1 month (1 h/day). EEG power spectral analyses of exposed and control animals during slow wave sleep (SWS) and rapid eye movement sleep (REM sleep) revealed that the REM sleep is more susceptible to modulated radiofrequency radiation fields (RFR) than the SWS. The latency of REM sleep increased due to radiation exposure indicating a change in the ultradian rhythm of normal sleep cycles. The cumulative and irreversible effect of radiation exposure was proposed and the interaction of the extremely low frequency radiation with the similar EEG frequencies was suggested.

KEYWORDS:

Electroencephalogram; Electromagnetic radiation; Rapid eye movement sleep; Slow wave sleep

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