Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
Effect of a 902 MHz electromagnetic field emitted by mobile phones on human cognitive function: A replication study.
Haarala C, Bjornberg L, Ek M, Laine M, Revonsuo A, Koivisto M, Hamalainen H. · 2003
View Original AbstractThis rigorous replication study found no cognitive effects from 902 MHz mobile phone EMF, highlighting the inconsistent nature of EMF research findings.
Plain English Summary
Researchers exposed 64 people to electromagnetic fields from 902 MHz mobile phones while they performed cognitive tests measuring reaction time and accuracy. Unlike their previous study that found some effects, this improved replication study with better controls found no differences in brain function whether the phone signal was on or off. The results suggest that mobile phone EMF either has no immediate impact on cognitive performance or any effects are too small to detect consistently.
Study Details
Our study was a replication and extension with methodological improvements to a previous study on effects of the electromagnetic field (EMF) emitted by a 902 MHz mobile phone on human cognitive functioning. Improvements on the previous study included multicentre testing and a double blind design
A total of 64 subjects (32 men and 32 women) in two independent laboratories performed a battery of ...
There were no statistically significant differences in performance between genders or laboratories. ...
We concluded that EMF had no effect on RTs or on the accuracy of the subjects' answers. Further, our results indicate that our EMF had no immediate effect on human cognitive functioning or that such effects are so small that they are observed on behavior only occasionally.
Show BibTeX
@article{c_2003_effect_of_a_902_3056,
author = {Haarala C and Bjornberg L and Ek M and Laine M and Revonsuo A and Koivisto M and Hamalainen H.},
title = {Effect of a 902 MHz electromagnetic field emitted by mobile phones on human cognitive function: A replication study.},
year = {2003},
url = {https://pubmed.ncbi.nlm.nih.gov/12696088/},
}