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Brain & Nervous System

Effects of weak mobile phone - electromagnetic fields (GSM, UMTS) on event related potentials and cognitive functions.

No Effects Found

Kleinlogel H, Dierks T, Koenig T, Lehmann H, Minder A, Berz R. · 2008

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This study found no immediate brain or cognitive effects from cell phone radiation at typical use levels in 15 healthy adults.

Plain English Summary

Summary written for general audiences

Researchers tested whether cell phone radiation from GSM and UMTS networks affects brain activity and cognitive performance in 15 healthy adults. They measured brain waves and reaction times during various mental tasks while participants were exposed to phone radiation at levels typical of actual phone use. The study found no significant changes in brain activity or cognitive function during EMF exposure compared to fake (sham) exposure.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 1.95 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 1.95 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 1950 MHz

Study Details

The aim of this study is to investigate Effects of weak mobile phone - electromagnetic fields (GSM, UMTS) on event related potentials and cognitive functions.

we tested the effects of both types of unilaterally presented EMF, 1950 UMTS (0.1 and 1 W/kg) and pu...

Neither the UMTS- nor the GSM-EMF produced any significant changes in the measured parameters compar...

The results do not give any evidence for a deleterious effect of the EMF on normal healthy mobile phone users.

Cite This Study
Kleinlogel H, Dierks T, Koenig T, Lehmann H, Minder A, Berz R. (2008). Effects of weak mobile phone - electromagnetic fields (GSM, UMTS) on event related potentials and cognitive functions. Bioelectromagnetics. 29(6):488-497, 2008.
Show BibTeX
@article{h_2008_effects_of_weak_mobile_3147,
  author = {Kleinlogel H and Dierks T and Koenig T and Lehmann H and Minder A and Berz R.},
  title = {Effects of weak mobile phone - electromagnetic fields (GSM, UMTS) on event related potentials and cognitive functions.},
  year = {2008},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/18421712/},
}
PubMed: 18421712

Cited By (73 papers)

View all 73 citing papers on Semantic Scholar

Quick Questions About This Study

A 2008 study found no significant effects on brain waves or cognitive function from GSM and UMTS phone radiation at 1950 MHz. Researchers tested 15 healthy adults during mental tasks and found no changes in brain activity or reaction times compared to fake exposure.
Research testing 1950 MHz radiation from GSM and UMTS networks found no impairment in mental performance. The study measured cognitive function during various mental tasks in 15 adults and detected no significant changes during real versus fake EMF exposure.
A controlled study found UMTS 3G radiation at 1950 MHz does not cause brain activity changes in healthy adults. Researchers measured event-related brain potentials during cognitive tasks and found no significant differences between real and sham EMF exposure conditions.
Research using EMF levels typical of actual phone use found no cognitive risks in healthy adults. The 2008 study tested both GSM and UMTS radiation during mental tasks and concluded there was no evidence of harmful effects on cognitive function.
A direct comparison found neither GSM nor UMTS phone signals at 1950 MHz produced brain effects in healthy users. Both network types showed identical results with no significant changes in brain waves or cognitive performance during exposure testing.