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Brain & Nervous System

Ultrawideband radiation and pentylenetetrazol-induced convulsions in rats.

No Effects Found

Miller SA, Bronson ME, Murphy MR · 1999

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UWB radiation showed no effect on drug-induced seizures in rats, but incomplete exposure details limit safety conclusions.

Plain English Summary

Summary written for general audiences

Researchers exposed rats to ultrawideband (UWB) electromagnetic pulses while inducing seizures with a drug called pentylenetetrazol to test whether these high-power, ultrashort electromagnetic pulses could cause brain tissue damage. They found no effect of UWB exposure on seizure activity compared to unexposed animals. This suggests that UWB radiation at the levels tested does not produce the kind of electromagnetic transients that would damage brain tissue.

Study Details

New non-ionizing pulsed systems using ultrawideband (UWB) require safety assessment before they can be used by either military or civilian communities. The development of directed energy weaponry intended for use against electronically vulnerable targets, as well as ground-probing radar systems, have used fast-rise-time high-peak-power electromagnetic pulses characteristic of UWB emitters. It has been postulated that these ultrashort pulses might produce electromagnetic transients resulting in tissue damage.

Several challenges to this notion have been posed, however. One report found that rats exposed to UW...

The data from the current study show no effect of UWB exposure on PTZ-induced seizure activity, thereby not supporting the tissue damage concerns, at least for the exposure parameters used here.

Cite This Study
Miller SA, Bronson ME, Murphy MR (1999). Ultrawideband radiation and pentylenetetrazol-induced convulsions in rats. Bioelectromagnetics 20(5):327-329, 1999.
Show BibTeX
@article{sa_1999_ultrawideband_radiation_and_pentylenetetrazolinduced_3246,
  author = {Miller SA and Bronson ME and Murphy MR},
  title = {Ultrawideband radiation and pentylenetetrazol-induced convulsions in rats.},
  year = {1999},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/10407518/},
}
PubMed: 10407518

Cited By (17 papers)

Quick Questions About This Study

Research shows ultrawideband (UWB) radiation does not cause seizures. A 1999 study exposed rats to high-power UWB electromagnetic pulses while inducing seizures with drugs, finding no effect on seizure activity compared to unexposed animals.
Current evidence suggests ultrawideband EMF does not damage brain tissue. Researchers tested whether UWB pulses could harm brain cells by exposing rats during drug-induced seizures, but found no tissue damage effects at the levels tested.
Studies indicate UWB radiation does not significantly affect neurological function. Research using rats exposed to ultrawideband electromagnetic pulses showed no changes in brain activity or seizure patterns compared to control groups receiving no exposure.
Based on available research, ultrawideband exposure appears to pose minimal brain risks. A controlled study found no evidence that UWB electromagnetic pulses cause the type of brain tissue damage that researchers were specifically testing for.
Ultrawideband EMF does not appear to impact seizure activity. Scientists exposed rats to UWB radiation during chemically-induced seizures and measured no significant differences in seizure onset or intensity compared to unexposed control animals.