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Brain & Nervous System

Synchronization dynamics induced on pairs of neurons under applied weak alternating magnetic fields.

No Effects Found

Azanza MJ, del Moral A, Calvo AC, Pérez-Bruzón RN, Junquera C. · 2013

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Weak magnetic fields at power line frequencies can force brain neurons to fire in artificial synchronization patterns.

Plain English Summary

Summary written for general audiences

Spanish researchers exposed pairs of snail neurons to weak 50 Hz magnetic fields (the same frequency as household electricity) to study how these fields affect brain cell communication. They found that the magnetic fields could force neurons to fire in sync with each other, creating artificial patterns of brain activity that matched the timing of the field exposure. This suggests that extremely low frequency magnetic fields can directly influence how brain cells communicate with each other.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 50 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 50 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

The study examined exposure from: 50 Hz Duration: 15 s with 1 min intervals

Study Details

To examine the effect of weak alternating magnetic fields on the synchronization dynamics of pairs of snail neurons

We have compared the AMFS patterns of discharge with: i) the synaptic activity promoted by glutamate...

AMFS activity reveals several specific features: i) a tight coincidence in time of the pattern and f...

Cite This Study
Azanza MJ, del Moral A, Calvo AC, Pérez-Bruzón RN, Junquera C. (2013). Synchronization dynamics induced on pairs of neurons under applied weak alternating magnetic fields. Comp Biochem Physiol A Mol Integr Physiol. 166(4):603-618, 2013.
Show BibTeX
@article{mj_2013_synchronization_dynamics_induced_on_2823,
  author = {Azanza MJ and del Moral A and Calvo AC and Pérez-Bruzón RN and Junquera C. },
  title = {Synchronization dynamics induced on pairs of neurons under applied weak alternating magnetic fields.},
  year = {2013},
  
  url = {https://www.sciencedirect.com/science/article/pii/S1095643313002250},
}

Quick Questions About This Study

Yes, Spanish researchers found that 50 Hz magnetic fields (the same frequency as household electricity) can force pairs of snail neurons to fire in perfect synchronization. This artificial timing matched the magnetic field exposure, showing that power line frequencies can directly influence how brain cells communicate with each other.
Research on snail neurons shows that weak 50 Hz magnetic fields can create artificial patterns of brain cell activity. The neurons fired in tight time coordination with the magnetic field frequency, suggesting that extremely low frequency fields from power lines can alter natural brain cell communication patterns.
When exposed to 50 Hz magnetic fields (household electricity frequency), neuron pairs showed forced synchronization and biphasic responses - meaning periods of increased activity followed by inhibition. These artificial firing patterns occurred only during field exposure and depended on the magnetic field's intensity.
Yes, the 2013 Spanish study found that higher intensity magnetic fields could actually desynchronize neuron pairs that were either naturally synchronized or artificially synchronized by weaker fields. This shows that magnetic field effects on brain cells depend heavily on the field strength used.
The researchers found that 4.7% of snail neurons contained gap-like junctions with connexin 26 proteins, but these electrical connections between cells did not respond to 50 Hz magnetic fields. The synchronization effects occurred through different cellular mechanisms than these direct electrical pathways.