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Integration of differences in EEG analysis reveals changes in human EEG caused by microwave.

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Bachmann M, Lass J, Kalda J, Säkki M, Tomson R, Tuulik V, Hinrikus H. · 2006

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Microwave radiation at 0.16 mW/cm² altered brain wave patterns in up to 30% of healthy adults, showing individual sensitivity varies significantly.

Plain English Summary

Summary written for general audiences

Estonian researchers exposed healthy volunteers to cell phone-like microwave radiation and measured brain wave activity. They found statistically significant changes in brain electrical patterns in 12% to 30% of subjects, demonstrating that microwave radiation below current safety limits can measurably alter normal brain function.

Why This Matters

This study matters because it demonstrates measurable neurological effects from microwave exposure at power levels (0.16 mW/cm²) that are considered safe by current regulations. The 450 MHz frequency falls within the range used by many wireless devices, making these findings directly relevant to everyday EMF exposure. What's particularly significant is that effects weren't universal - they occurred in 12% to 30% of subjects, suggesting individual sensitivity varies considerably. This aligns with growing evidence that EMF safety standards based on average population responses may not protect sensitive individuals. The science demonstrates that your brain's electrical activity can be altered by microwave radiation at levels you encounter regularly from wireless devices, even when you're not making a call.

Exposure Details

Power Density
0.16 µW/m²
Source/Device
450 MHz modulated with 7 Hz, 14 Hz, 21 Hz, 40 Hz, 70 Hz, 217 or 1000 Hz frequencies.

Exposure Context

This study used 0.16 µW/m² for radio frequency:

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 ContextA logarithmic scale showing exposure levels relative to Building Biology concern thresholds and regulatory limits.Study Exposure Level in ContextThis study: 0.16 µW/m²Extreme Concern1,000 uW/m2FCC Limit10M uW/m2Effects observed in the Slight Concern range (Building Biology)FCC limit is 62,500,000x higher than this exposure level

Study Details

The aim of this study is to observeIntegration of differences in EEG analysis reveals changes in human EEG caused by microwave.

Three different methods in combination with integration of differences in signals were applied for E...

The EEG analysis performed for individuals with three different methods showed that statistically si...

Cite This Study
Bachmann M, Lass J, Kalda J, Säkki M, Tomson R, Tuulik V, Hinrikus H. (2006). Integration of differences in EEG analysis reveals changes in human EEG caused by microwave. Conf Proc IEEE Eng Med Biol Soc. 1:1597-1600, 2006.
Show BibTeX
@article{m_2006_integration_of_differences_in_838,
  author = {Bachmann M and Lass J and Kalda J and Säkki M and Tomson R and Tuulik V and Hinrikus H.},
  title = {Integration of differences in EEG analysis reveals changes in human EEG caused by microwave.},
  year = {2006},
  
  url = {https://www.researchgate.net/publication/5899717_Integration_of_differences_in_EEG_Analysis_Reveals_Changes_in_Human_EEG_Caused_by_Microwave},
}

Quick Questions About This Study

Estonian researchers exposed healthy volunteers to cell phone-like microwave radiation and measured brain wave activity. They found statistically significant changes in brain electrical patterns in 12% to 30% of subjects, demonstrating that microwave radiation below current safety limits can measurably alter normal brain function.