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Brain & Nervous System116 citations

Effects of high-frequency electromagnetic fields on human eeg: A brain mapping study.

No Effects Found

Kramarenko AV, Tan U. · 2003

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Cell phone radiation causes abnormal brain wave patterns within seconds of exposure, with children showing stronger effects than adults.

Plain English Summary

Summary written for general audiences

Ukrainian researchers used specialized brain monitoring equipment to measure how cell phone radiation affects brain waves in awake adults and children. They found that mobile phones caused abnormal slow-wave patterns to appear in the brain within 20-40 seconds of exposure, with children showing stronger effects that appeared faster than in adults. These brain wave changes disappeared 15-20 minutes after turning off the phone, suggesting cell phones can temporarily alter normal brain activity.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 3 Hz - 6 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 3 Hz - 6 HzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

The study examined exposure from: 1- 2.5Hz, 2.5-6.0 Hz

Study Details

The aim of this study is to investigate Effects of high-frequency electromagnetic fields on human eeg: A brain mapping study.

We used a 16-channel telemetric electroencephalograph (ExpertTM), to record EEG changes during expos...

Traditional EEG was full of noises during operation of a cellular phone. Using a telemetric electroe...

The results suggested that cellular phones may reversibly influence the human brain, inducing abnormal slow waves in EEG of awake persons.

Cite This Study
Kramarenko AV, Tan U. (2003). Effects of high-frequency electromagnetic fields on human eeg: A brain mapping study. Int J Neurosci. 113(7):1007-1019, 2003.
Show BibTeX
@article{av_2003_effects_of_highfrequency_electromagnetic_3157,
  author = {Kramarenko AV and Tan U.},
  title = {Effects of high-frequency electromagnetic fields on human eeg: A brain mapping study.},
  year = {2003},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/12881192/},
}
PubMed: 12881192

Cited By (116 papers)

View all 116 citing papers on Semantic Scholar

Quick Questions About This Study

Yes, telemetric EEG eliminates the electrical noise that traditional EEG equipment picks up during cell phone operation. Ukrainian researchers using the ExpertTM telemetric system could clearly observe brain wave changes that were previously masked by interference, revealing abnormal slow-wave patterns within 20-40 seconds of phone exposure.
Abnormal slow-wave brain activity appears within 20-40 seconds of cell phone exposure in adults, according to 2003 research using specialized brain monitoring. Children showed these effects even faster, with abnormal waves appearing within just 10-20 seconds of phone activation.
Yes, abnormal brain wave patterns caused by cell phone radiation progressively disappear after turning off the phone. Research shows these slow-wave changes and increased brain activity near the antenna completely resolve within 15-20 minutes of ending phone exposure.
Children's brains respond more dramatically to cell phone radiation than adults. Research found children develop abnormal slow waves faster (10-20 seconds vs 20-40 seconds), with higher amplitude, lower frequency patterns (1.0-2.5 Hz vs 2.5-6.0 Hz), and longer duration between wave intervals.
Cell phone radiation causes abnormal slow-wave activity in the contralateral frontal and temporal brain areas - the regions opposite to where you hold the phone. These 2.5-6.0 Hz slow waves repeat every 15-20 seconds at the same brain monitoring locations during phone exposure.