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Brain & Nervous System

Extremely low-frequency magnetic fields effects on the snail single neurons.

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Partsvania B, Sulaberidze T, Modebadze Z, Shoshiashvili L. · 2008

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Exposing snail neurons to extremely low-frequency magnetic fields caused dehabituation, with the effect proportional to the magnetic field's peak value.

Plain English Summary

Summary written for general audiences

Researchers studied how extremely low-frequency magnetic fields at 8.34 and 217 Hz affected the ability of single neurons in the mollusk Helix Pomatia to habituate to repeated stimuli. Brain ganglia were exposed to magnetic fields with peak values between 1 and 6 mT using Helmholtz coils, and neuron activity was recorded with a standard microelectrode technique. Exposure caused dehabituation, which the researchers described as occurring through degradation of the signal to noise ratio and alteration of the neuron's normal function.

Why This Matters

The researchers found that the stronger the magnetic field's peak value, the larger the dehabituation effect. The isolated nervous system of the mollusk Helix Pomatia was used in the experiments, and Helmholtz coils were used to expose brain ganglia to the fields.

Exposure Details

Magnetic Field
1 and 6 mT
Source/Device
8.34 and 217 Hz

Exposure Context

This study used 1 and 6 mT for magnetic fields:

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.

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 1 and 6 mTExtreme Concern - 5 mGFCC Limit - 2,000 mGEffects observed in the Extreme Concern range (Building Biology)This level is 5 times the FCC limit
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 217 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 217 HzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Study Details

The aim of present work is to explore the influence of extremely low-frequency electromagnetic fields (8.34 and 217 Hz) utilized in cell phones on habituation of the mollusk single neuron to intracellular stimuli.

The isolated nervous system of the mollusk Helix Pomatia was used in the experiments. Helmholtz coil...

Exposure of the neuron to the low-frequency electromagnetic fields caused dehabituation to intracell...

Cite This Study
Partsvania B, Sulaberidze T, Modebadze Z, Shoshiashvili L. (2008). Extremely low-frequency magnetic fields effects on the snail single neurons. Electromagn Biol Med. 27(4):409-417, 2008.
Show BibTeX
@article{b_2008_extremely_lowfrequency_magnetic_fields_282,
  author = {Partsvania B and Sulaberidze T and Modebadze Z and Shoshiashvili L.},
  title = {Extremely low-frequency magnetic fields effects on the snail single neurons.},
  year = {2008},
  
  url = {https://europepmc.org/article/med/19037790},
}
PubMed: 19037790

Cited By (7 papers)

Quick Questions About This Study

The isolated nervous system of the mollusk Helix Pomatia was used in the experiments.
The study tested extremely low-frequency magnetic fields at 8.34 and 217 Hz.
Exposure caused dehabituation to intracellular stimuli, occurring through degradation of the signal to noise ratio and alteration of the neuron's normal function.
The dehabituation effect was proportional to the magnetic induction peak value.
Peak values of the extremely low-frequency fields were between 1 and 6 mT.