Study type: Medical/biological study (experimental study)

Whole brain EEG synchronization likelihood modulated by long term evolution electromagnetic fields exposure. med./bio.

Published in: IEEE 36th Annual International Conference of the Engineering in Medicine and Biology Society (EMBC), 2014. IEEE, 2014, ISBN 9781424479290: 986-989

Aim of study (acc. to author)

The effects of an acute exposure of human probands to a 2573 MHz electromagnetic field on the neural synchronization in the brain should be investigated.

Background/further details

Ten healthy subjects participated at two sessions (exposure and sham exposure), respectively, with each session lasting for 50 minutes (10 min rest, 30 minutes exposure or sham exposure, 10 minutes rest) and being conducted with an interval of one week.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 2.573 GHz
Exposure duration: continuous for 30 min
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Exposure 1

Main characteristics
Frequency 2.573 GHz
Type
Exposure duration continuous for 30 min
Exposure setup
Exposure source
Distance between exposed object and exposure source 1 cm
Setup subjects sat on a chair with their eyes closed; antenna was placed at the right ear with 1 cm distance, signal was generated by LTE generator and amplifier
Sham exposure A sham exposure was conducted.
Parameters

No parameters are specified for this exposure.

Reference articles

  • Lv B et al. (2014): The alteration of spontaneous low frequency oscillations caused by acute electromagnetic fields exposure.
  • Wu T et al. (2012): Dosimetric studies involving in the experiments for the evaluation of the brain activation by LTE exposure.

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • before exposure
  • during exposure
  • after exposure

Main outcome of study (acc. to author)

Several statistically significant synchronization events were found in different frequency bands of exposed probands compared to sham exposure during and after exposure. The main areas of synchronization were located in the left and middle prefrontal areas and the right temporal areas.
The authors conclude that an acute exposure of human probands to a 2573 MHz electromagnetic field can modulate the brain activity, even in brain regions remote from the source of exposure.

Study character:

Study funded by

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