López Martín, E.Brégains, JulioJorge Barreiro, F. JavierSebastián Franco, José LuisMoreno Piquero, E.Ares Pena, F. J.2016-07-282016-07-282008An Experimental Set - Up for Measurement of the Power Absorbed from 900 MHz GSM Standing Waves by Small Animals , Illustrated by Application to Picrotoxin - Treated Rats E. López-Martin, J. C. Bregains, F. J. Jorge-Barreiro, J. L. Sebastian Franco, E. Moreno-Piquero, and F. J. Ares-Pena Progress In Electromagnetics Research, PIER 87, 149-165, 2008.1559-8985http://hdl.handle.net/2183/17144[Abstract] We describe an experimental set-up for exposure of small animals to radiofrequency standing waves that allows direct measurement of the power absorbed by the animal. Essentially, the set-up consists of a metallic box containing an antenna and experimental animal immobilized in a methacrylate holder; a signal generator feeding the antenna; and a power meter. In addition, the box can also contain a video camera to record the animal's behaviour, and a receiving antenna (connected externally to a power meter and a spectrum analyser) to detect alien radiation and harmonics. The absorbed power measurement trivially allows calculation of whole-body mean SAR from the animal's weight; and assuming local SARs to be proportional to whole-body mean SAR, the latter can be used to adjust organ-specific SAR predictions obtained by simulation using a commercial FDTD program with a numerical phantom. The use of the system is illustrated by application to rats given subconvulsive doses of picrotoxin to induce a seizure-prone state analogous to epilepsy: levels of the neuronal activity marker c-Fos in the frontal and piriform cortex of picrotoxin-treated rats exposed to 900 MHz GSM radiation were twice as high as those of unexposed animals.engAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/RadiofrequencyRadiofrecuenciaStanding wavesOndas estacionariasSmall animalsAnimales pequeñosjournal articleopen access10.2528/PIER08101307