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 power line electric fields impaired rats' auditory brain processing after just 4 weeks of exposure.
Plain English Summary
Researchers exposed rats to electric fields like those near power lines for up to four weeks. Higher intensity, longer exposures significantly impaired the brain's ability to detect sound changes, a function essential for learning and attention, while causing oxidative brain damage.
Why This Matters
This study adds important evidence to our understanding of how ELF electric fields affect brain function, particularly cognitive processing. The exposure levels tested (12-18 kV/m) are comparable to what you might encounter living very close to high-voltage power lines, though much higher than typical household exposures. What makes this research particularly concerning is that it demonstrates measurable neurological effects after relatively short exposure periods. The mismatch negativity response they measured is crucial for detecting environmental changes and is impaired in conditions like ADHD and schizophrenia. The fact that researchers found both functional brain changes and oxidative damage suggests a biological mechanism behind the observed effects. While this is animal research, it adds to the growing body of evidence that ELF exposures can affect nervous system function, particularly with the combination of higher intensities and longer exposure durations.
Exposure Details
- Electric Field
- 12000 and 18000 V/m
- Source/Device
- 50 Hz
- Exposure Duration
- 2 and 4 Weeks
Exposure Context
This study used 12000 and 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...
Consequently, it could be concluded that electric field decreased MMN amplitudes possibly induced by lipid peroxidation.
Show BibTeX
@article{d_2014_effects_of_extremely_lowfrequency_265,
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},
}