New Study Focuses on Link Between Exposure to EMF and Brain Activity
A recent study, "Exposure to pulse-modulated radio frequency electromagnetic fields affects regional cerebral blood flow" by R. Huber, V. Treyer, J. Schuderer, T. Berthold, A. Buck, N. Kuster, H. P. Landolt and P. Achermann, published in the latest issue of the European Journal of Neuroscience (Vol. 21, Issue 4, pp. 1000–1006, February 2005) investigated the effects of radio frequency electromagnetic fields on waking regional cerebral brain flow. The paper reports an increase in relative rCBF in the dorsolateral prefrontal cortex on the side of exposure. The effect depended on the spectral power in the amplitude modulation of the RF carrier such that only 'handset-like' RF EMF exposure with its stronger low-frequency components but not the 'base-station-like' RF EMF exposure affected rCBF.