Effects of extremely low-frequency electric fields at different intensities and exposure durations on mismatch negativity.
Kantar Gok D, Akpinar D, Yargicoglu P, Ozen S, Aslan M, Demir N, Derin N, Agar A. · 2014
View Original AbstractHigh-intensity electric fields impaired rats' brain processing of sounds while causing oxidative damage, suggesting ELF exposure may affect cognitive function.
Plain English Summary
Researchers exposed rats to electric fields from power lines for up to four weeks. The strongest exposure significantly impaired the brain's ability to detect sound changes, a function crucial for attention and learning, while also causing harmful cellular damage in brain tissue.
Why This Matters
This study provides compelling evidence that extremely low-frequency electric fields can directly impair brain function, specifically the neural processes underlying auditory attention and discrimination. The 18 kV/m exposure level used here is extremely high compared to typical residential environments (which range from 1-20 V/m), but the finding of measurable brain effects at any level adds to growing concerns about ELF field exposure. What makes this research particularly significant is that it demonstrates functional neurological changes, not just cellular damage. The mismatch negativity response is crucial for cognitive processing and learning, and its impairment suggests that ELF fields may affect higher-order brain functions. The concurrent finding of increased lipid peroxidation provides a potential biological mechanism, showing how electromagnetic exposure translates into oxidative stress and ultimately neurological dysfunction.
Exposure Details
- Electric Field
- 12000, 18000 V/m
- Source/Device
- 50 Hz
- Exposure Duration
- 2 weeks and 4 weeks
Exposure Context
This study used 12000, 18000 V/m for electric fields:
- 40Kx above the Building Biology guideline of 0.3 V/m
Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.
Study Details
The purpose of the study was to investigate different intensities and exposure durations of ELF-EFs on MMN component of event-related potentials (ERPs) as well as apoptosis and oxidative brain damage in rats.
Ninety male rats, aged 3 months were used in our study. A total of six groups, composed of 15 animal...
In the current study, different change patterns in ERP parameters were observed dependent on the int...
It could be concluded that electric field decreased MMN amplitudes possibly induced by lipid peroxidation.
Show BibTeX
@article{d_2014_effects_of_extremely_lowfrequency_660,
author = {Kantar Gok D and Akpinar D and Yargicoglu P and Ozen S and Aslan M and Demir N and Derin N and Agar A.},
title = {Effects of extremely low-frequency electric fields at different intensities and exposure durations on mismatch negativity.},
year = {2014},
url = {https://www.sciencedirect.com/science/article/abs/pii/S0306452214003686},
}