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Brain & Nervous System

Effect of whole-body exposure to high-frequency electromagnetic field on the brain cortical and hippocampal activity in mouse experimental model

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Barcal J, Vozeh F · 2007

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ECoG showed a shift to lower frequencies in wild-type mice but only slight differences in Lurcher mutants; hippocampal rhythmicity increased higher frequencies and altered theta oscillations in both.

Plain English Summary

Summary written for general audiences

ECoG evaluation showed a distinct shift to lower frequency components in wild type mice but only gentle differences in Lurcher mutant mice. Hippocampal rhythmicity showed gentle changes with increase of higher frequencies and changes in theta oscillations in both healthy and mutant mice.

Why This Matters

The study aimed to study the effect of whole-body exposure to high-frequency electromagnetic field on the brain cortical and hippocampal activity in mouse experimental model. The authors noted that despite lower absorbed energy than human brain during cellular phone use, results suggest some neuronal populations react to this radiation. Gel electrodes with connections outside the HF-EMF space were used for recordings.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 900 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 900 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study. The study examined exposure from: 900 MHz HF-EMF Cellular Phones

Study Details

To study the effect of whole-body exposure to high-frequency electromagnetic field on the brain cortical and hippocampal activity in mouse experimental model.

Evaluation of the direct registration of brain cortical and hippocampal activity during a high-frequ...

ECoG evaluation showed a distinct shift to lower frequency components but clear effect has been obse...

Despite our experimental paradigm (i.e. whole-body HF EMF exposure characterized by lower amount of absorbed energy in comparison with human brain during cellular phone use), presented results suggest that some neuronal populations (cortical and subcortical) react on this type of radiation.

Cite This Study
Barcal J, Vozeh F (2007). Effect of whole-body exposure to high-frequency electromagnetic field on the brain cortical and hippocampal activity in mouse experimental model NeuroQuantology 5:292-302, 2007.
Show BibTeX
@article{j_2007_effect_of_wholebody_exposure_1488,
  author = {Barcal J and Vozeh F},
  title = {Effect of whole-body exposure to high-frequency electromagnetic field on the brain cortical and hippocampal activity in mouse experimental model},
  year = {2007},
  
  url = {https://www.researchgate.net/publication/287860546},
}

Quick Questions About This Study

Animals were exposed to the HF-EMF with frequency corresponding to cellular phones (900 MHz).
ECoG evaluation showed a distinct shift to lower frequency components in wild type mice but only gentle differences in Lurcher mutant mice.
Hippocampal rhythmicity showed gentle changes with increase of higher frequencies and changes in theta oscillations in both healthy and mutant mice.
The findings support an idea about possible influencing the central nervous system by HF-EMF exposure and support also some recent results about possible health risks resulting from cellular phones use.
Experimental procedures were done under general anesthesia (urethane, 20%, 2g/kg i.p.) and gel electrodes with connections outside the HF-EMF space were used.