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In-vitro exposure of neuronal networks to the GSM-1800 signal.

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Moretti D, Garenne A, Haro E, Poulletier de Gannes F, Lagroye I, Lévêque P, Veyret B, Lewis N. · 2013

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Cell phone radiation reduced brain cell activity by 30% in lab studies, showing direct neurological effects at exposure levels similar to heavy phone use.

Plain English Summary

Summary written for general audiences

French researchers exposed lab-grown brain cell networks to cell phone radiation (GSM-1800) for 3 minutes and measured their electrical activity in real time. They found that the radiation caused a 30% decrease in the brain cells' firing rate and bursting patterns - essentially making the neurons less active. The effect was reversible, meaning the cells returned to normal activity after exposure ended.

Why This Matters

This study provides direct evidence that cell phone radiation can alter brain cell activity at the cellular level. The researchers used a SAR level of 3.2 W/kg, which is higher than typical phone use (around 1-2 W/kg) but within the range that occurs during heavy use or poor signal conditions. What makes this research particularly significant is that it demonstrates immediate, measurable changes in how neurons communicate - the fundamental process underlying all brain function. The fact that the effect was reversible suggests the brain cells weren't permanently damaged, but it raises important questions about what happens with repeated or prolonged exposure. This adds to a growing body of research showing that RF radiation can influence nervous system function, contradicting industry claims that non-thermal effects don't exist.

Exposure Details

SAR
3.2 W/kg
Source/Device
GSM-1800
Exposure Duration
3 min

Exposure Context

This study used 3.2 W/kg for SAR (device absorption):

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 3.2 W/kgExtreme Concern - 0.1 W/kgFCC Limit - 1.6 W/kgEffects observed in the Extreme Concern rangeFCC limit is 1x higher than this level
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 1800 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 1800 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

To study the in-vitro exposure of neuronal networks to the GSM-1800 signal.

Our research group has developed a dedicated experimental setup in the GHz range for the simultaneou...

This work provides the proof of feasibility and preliminary results of the integrated investigation ...

Cite This Study
Moretti D, Garenne A, Haro E, Poulletier de Gannes F, Lagroye I, Lévêque P, Veyret B, Lewis N. (2013). In-vitro exposure of neuronal networks to the GSM-1800 signal. Bioelectromagnetics. 2013 Aug 1. doi: 10.1002/bem.21805.
Show BibTeX
@article{d_2013_invitro_exposure_of_neuronal_1210,
  author = {Moretti D and Garenne A and Haro E and Poulletier de Gannes F and Lagroye I and Lévêque P and Veyret B and Lewis N.},
  title = {In-vitro exposure of neuronal networks to the GSM-1800 signal.},
  year = {2013},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/23913345/},
}
PubMed: 23913345

Cited By (28 papers)

Quick Questions About This Study

Yes, French researchers found that GSM-1800 radiation caused a 30% decrease in brain cell firing rate and bursting patterns during 3-minute exposures. The neurons became less electrically active, but the effect was completely reversible once exposure ended.
Research shows that just 3 minutes of GSM-1800 cell phone radiation reduced neuronal firing rate by 30% in lab-grown brain networks. The brain cells' electrical activity returned to normal levels after the radiation exposure stopped.
No, the effects appear to be reversible. A 2013 study found that while GSM-1800 radiation reduced brain cell activity by 30%, the neurons returned to normal firing patterns once the exposure ended, suggesting temporary rather than permanent changes.
GSM-1800 radiation decreased both firing rate and bursting rate in neuronal networks by 30% during exposure. These bursting patterns represent coordinated electrical activity between brain cells, which was disrupted but recovered after exposure ceased.
Researchers monitoring brain cell networks in real-time found that GSM-1800 radiation immediately reduced electrical activity by 30%. The neurons showed decreased firing and bursting patterns throughout the 3-minute exposure period, with activity normalizing afterward.