Time-course of electromagnetic field effects on human performance and tympanic temperature.
Curcio G, Ferrara M, De Gennaro L, Cristiani R, D'Inzeo G, Bertini M. · 2004
View Original AbstractCell phone-frequency radiation improves reaction time while heating tissue, with effects requiring 25+ minutes of exposure to become measurable.
Plain English Summary
Researchers exposed people to cell phone-frequency radiation (902.40 MHz) for 25 minutes and tested their reaction times and ear temperature. They found that radiation exposure made people react faster on cognitive tests and raised the temperature in the exposed ear. The study shows that measurable biological changes from wireless radiation require at least 25 minutes of exposure to become apparent.
Why This Matters
This study provides clear evidence that wireless radiation at cell phone frequencies produces measurable biological effects in humans, including both cognitive changes and tissue heating. The 902.40 MHz frequency used falls squarely within the range of modern wireless devices, making these findings directly relevant to daily exposure from smartphones and other wireless technologies. What's particularly significant is the documented time-course showing that biological effects accumulate over time, requiring at least 25 minutes of continuous exposure to become detectable. This challenges the common assumption that brief exposures are harmless and suggests that longer phone calls or extended device use may produce more pronounced biological responses than previously recognized. The combination of improved reaction times alongside increased tissue temperature indicates that EMF exposure affects both neurological function and thermal regulation simultaneously.
Exposure Information
Specific exposure levels were not quantified in this study. The study examined exposure from: 902.40 MHz Duration: 25 minutes
Study Details
The study aimed to investigate the time-course of electromagnetic field (EMF)-induced effects on human cognitive and behavioral performance and on tympanic temperature.
Subjects were randomly assigned to two groups, exposed to a 902.40 MHz EMF before the testing sessio...
Results indicated an improvement of both simple- and choice-reaction times and an increase of local ...
There was a clear time-course of the reaction time and temperature data, indicating that performance and physiological measures need a minimum of 25 min of EMF exposure to show appreciable changes.
Show BibTeX
@article{g_2004_timecourse_of_electromagnetic_field_2004,
author = {Curcio G and Ferrara M and De Gennaro L and Cristiani R and D'Inzeo G and Bertini M.},
title = {Time-course of electromagnetic field effects on human performance and tympanic temperature.},
year = {2004},
url = {https://pubmed.ncbi.nlm.nih.gov/15106850/},
}