Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
Human brain activity during exposure to radiofrequency fields emitted by cellular phones.
Hietanen M, Kovala T, Hamalainen AM · 2000
View Original AbstractThis controlled study found no consistent brain wave changes from 20-minute cell phone exposures, with one isolated finding likely due to chance.
Plain English Summary
Finnish researchers measured brain wave activity (EEG) in 19 volunteers while they were exposed to radiation from five different cell phones operating at 900 MHz or 1800 MHz for 20 minutes each. They found one small change in brain activity with one phone, but no consistent patterns across the other phones or brain wave frequencies. The researchers concluded this single finding was likely due to random chance rather than actual effects from the phone radiation.
Study Details
The aim of this study was to explore the possible influence of radiofrequency (RF) radiation exposure on human brain function.
The electroencephalographic (EEG) activity of 19 volunteers was quantitatively analyzed. Ten of the ...
Exposure to one of the phones caused a statistically significant change in the absolute power at the...
The findings of this study suggest that exposure to radiofrequency fields emitted by cellular phones has no abnormal effects on human EEG activity. The observed difference in 1 parameter was probably caused by statistical chance.
Show BibTeX
@article{m_2000_human_brain_activity_during_3077,
author = {Hietanen M and Kovala T and Hamalainen AM},
title = {Human brain activity during exposure to radiofrequency fields emitted by cellular phones.},
year = {2000},
url = {https://pubmed.ncbi.nlm.nih.gov/10817372/},
}