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Brain & Nervous System

Using the nonlinear control of anesthesia-induced hypersensitivity of EEG at burst suppression level to test the effects of radiofrequency radiation on brain function.

No Effects Found

Lipping T, Rorarius M, Jantti V, Annala K, Mennander A, Ferenets R, Toivonen T, Toivo T, Varri A, Korpinen L. · 2009

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High-intensity mobile phone radiation failed to trigger brain responses in hypersensitive pigs, but caused significant heating and heart rate increases.

Plain English Summary

Summary written for general audiences

Researchers exposed eleven anesthetized pigs to mobile phone radiation at 890 MHz to test whether radiofrequency signals could trigger brain activity changes in a highly sensitive state. They found no correlation between RF exposure and brain wave patterns, though the animals experienced significant temperature increases (1.6°C) and elevated heart rates during the 10-minute exposures. This suggests that while RF radiation can cause heating effects, it may not directly stimulate brain activity even under conditions of heightened neural sensitivity.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 890 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 890 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 890 MHz Duration: 10 minutes

Study Details

In this study, investigating the effects of mobile phone radiation on test animals, eleven pigs were anaesthetised to the level where burst-suppression pattern appears in the electroencephalogram (EEG).

To test if also radio frequency (RF) stimulation can trigger this nonlinear control, the animals wer...

No correlation between the exposure and the EEG burst occurrences was observed in phase I measuremen...

The hypothesis that RF radiation would produce sensory stimulation of somatosensory, auditory or visual system or directly affect the brain so as to produce EEG bursts during suppression was not confirmed.

Cite This Study
Lipping T, Rorarius M, Jantti V, Annala K, Mennander A, Ferenets R, Toivonen T, Toivo T, Varri A, Korpinen L. (2009). Using the nonlinear control of anesthesia-induced hypersensitivity of EEG at burst suppression level to test the effects of radiofrequency radiation on brain function. Nonlinear Biomed Phys.3(1):5, 2009.
Show BibTeX
@article{t_2009_using_the_nonlinear_control_3203,
  author = {Lipping T and Rorarius M and Jantti V and Annala K and Mennander A and Ferenets R and Toivonen T and Toivo T and Varri A and Korpinen L.},
  title = {Using the nonlinear control of anesthesia-induced hypersensitivity of EEG at burst suppression level to test the effects of radiofrequency radiation on brain function.},
  year = {2009},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/19615084/},
}
PubMed: 19615084

Cited By (6 papers)

Quick Questions About This Study

No, a 2009 study found that 890 MHz mobile phone radiation did not trigger brain activity changes in anesthetized pigs, even during burst suppression when the brain is highly sensitive to stimulation. The researchers detected no correlation between RF exposure and brain wave patterns despite using multiple analysis methods.
Yes, research shows 890 MHz mobile phone radiation can cause significant heating effects. In a controlled study, 10-minute exposures increased head temperature by 1.6°C in test subjects, demonstrating that RF radiation produces measurable thermal effects even when brain activity remains unchanged.
Yes, exposure to 890 MHz mobile phone radiation increased heart rate by an average of 14.2 beats per minute during 10-minute exposure periods. This cardiovascular response occurred alongside temperature increases, suggesting the body responds to RF heating effects even without direct brain stimulation.
No, research using 890 MHz radiation found no evidence that RF exposure stimulates somatosensory, auditory, or visual systems during anesthesia. The study specifically tested whether mobile phone radiation could trigger sensory responses in a highly sensitive brain state but found no such effects.
No, even the highly sensitive burst suppression state during anesthesia did not reveal RF radiation effects on brain activity. Researchers used this hypersensitive neural condition specifically to detect subtle RF impacts on the brain, but found no correlation between 890 MHz exposure and EEG burst patterns.