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Mobile phone derived electromagnetic fields can disturb learning
Date:6/30/2011

High frequency non-ionizing radiation, emitted by mobile phones, is redundantly matter of discussions. The effects of high frequency electromagnetic fields (HEFs) derived from mobile phones have been discussed since the 1950's. Neuroscientists from Bochum were now able to elucidate this question. For the first time, they provide proof that extremely high-powered electromagnetic fields (EMFs) indeed influence learning processes on the synaptic level within the brain, independent from other factors like stress. "For this effect, very high values are necessary. These do not occur during the daily use of mobile phones", explains Dr. Nora Prochnow (Medical Faculty of the RUB).

Mobile phone derived non-ionizing radiation can produce heat

HEFs are not only used in mobile phones, but also in a variety of other communication systems like radio, television or cordless telephone sets. Mobile phones of the so called third generation utilize the UMTS technology (Universal Mobile Communication System) with a frequency of 1200 MHz and a relatively weak operating range (3.8-4.8 V/m). With increasing power, EMFs are able to elicit local warming of body tissues, being also described as a "thermal effect". Reportedly, mobile phones can cause local warming of the brain by less than 0.1C. The effect on function and structure of the brain during long term use of mobile phones (e.g. > 30 min) remains unexplained until now.

and might influence cellular activity

Furthermore, statements regarding the non-thermal effects of mobile phone emitted EMFs are unclear and contradictive. These comprise for instance an increase in permeability and fluidity of cellular membranes, which can be implicated in changes in ion-channel integration and metabolism, even without a detectable change in temperature. This may impair synaptic learning processes in the brain. Until now, experiments could only insufficiently enlighten, whether these effects are der
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Contact: Dr. Nora Prochnow
nora.prochnow@rub.de
49-234-322-4406
Ruhr-University Bochum
Source:Eurekalert

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