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Brain & Nervous System

Multigenerational effects of whole body exposure to 2.14 GHz W-CDMA cellular phone signals on brain function in rats.

No Effects Found

Shirai T, Imai N, Wang J, Takahashi S, Kawabe M, Wake K, Kawai H, Watanabe S-I, Furukawa F, Fujiwara O. · 2014

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Three generations of rats showed no brain effects from 20-hour daily cell phone radiation exposure at levels within current safety limits.

Plain English Summary

Summary written for general audiences

Japanese researchers exposed rats to cell phone radiation (2.14 GHz W-CDMA signals) for 20 hours daily across three generations to see if it affected brain development and behavior. They found no abnormalities in brain function, behavior, or general health in any generation of rats, even with continuous exposure from pregnancy through adulthood. The study suggests that this type of cell phone radiation at these exposure levels does not cause harmful effects that pass from parents to offspring.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 2.14 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 2.14 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 2.14 GHz W-CDMA cellular phone Duration: 20 h

Study Details

The present experimental study was carried out with rats to evaluate the effects of whole body exposure to 2.14 GHz band code division multiple access (W-CDMA) signals for 20 h a day, over three generations.

The average specific absorption rate (SAR, in unit of W/kg) for dams was designed at three levels: h...

No abnormalities were observed in the mother rats (F0 , F1 , and F2 ) and in the offspring (F1 , F2 ...

Thus, it was concluded that under the experimental conditions applied, multigenerational whole body exposure to 2.14 GHz W-CDMA signals for 20 h/day did not cause any adverse effects on the F1 , F2 , and F3 offspring.

Cite This Study
Shirai T, Imai N, Wang J, Takahashi S, Kawabe M, Wake K, Kawai H, Watanabe S-I, Furukawa F, Fujiwara O. (2014). Multigenerational effects of whole body exposure to 2.14 GHz W-CDMA cellular phone signals on brain function in rats. Bioelectromagnetics 35(7):497-511, 2014.
Show BibTeX
@article{t_2014_multigenerational_effects_of_whole_3396,
  author = {Shirai T and Imai N and Wang J and Takahashi S and Kawabe M and Wake K and Kawai H and Watanabe S-I and Furukawa F and Fujiwara O. },
  title = {Multigenerational effects of whole body exposure to 2.14 GHz W-CDMA cellular phone signals on brain function in rats.},
  year = {2014},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/25196377/},
}
PubMed: 25196377

Cited By (18 papers)

Quick Questions About This Study

A 2014 Japanese study found no harmful effects across three generations of rats exposed to 2.14 GHz W-CDMA signals for 20 hours daily. Brain function, behavior, and general health remained normal in all generations, suggesting multigenerational safety at these exposure levels.
Research exposing pregnant rats to 2.14 GHz W-CDMA radiation for 20 hours daily found no abnormalities in mothers or offspring. Brain development and neurobehavioral function remained normal from pregnancy through adulthood, indicating safety at tested exposure levels.
Japanese researchers found no brain damage or behavioral abnormalities in rats exposed to 2.14 GHz W-CDMA signals for 20 hours daily across multiple generations. Neurobehavioral function remained completely normal despite continuous high-level exposure from pregnancy through adulthood.
A multigenerational study found no inherited brain problems from W-CDMA radiation exposure. Rats exposed to 2.14 GHz signals for 20 hours daily showed normal brain function across three generations, with no adverse effects passing from parents to offspring.
Research found no neurobehavioral risks from chronic W-CDMA exposure. Rats exposed to 2.14 GHz signals for 20 hours daily across multiple generations showed normal brain function and behavior, suggesting this radiation type doesn't impair neurological development or function.