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ELECTRON SPIN RESONANCE SIGNALS IN INJURED NERVE

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B. Commoner, J. L. Ternberg, E. Larsson · 1969

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Injured nerve tissue produces ferromagnetic crystals with unique electromagnetic signatures, revealing the nervous system's inherent electromagnetic sensitivity.

Plain English Summary

Summary written for general audiences

Researchers in 1969 discovered that injured frog nerves produce unusual electron spin resonance (ESR) signals, indicating the formation of small ferromagnetic crystals when nerves are damaged by mechanical pressure. This was an early finding showing that nerve tissue can develop electromagnetic properties when subjected to physical trauma.

Why This Matters

This pioneering 1969 study by Commoner represents some of the earliest research into the electromagnetic properties of biological tissues, specifically nerve tissue. The discovery that mechanical injury to nerves creates ferromagnetic crystals that produce ESR signals reveals how biological systems can become electromagnetically active under stress conditions. What makes this particularly relevant to today's EMF health discussions is that it demonstrates how nerve tissue can fundamentally change its electromagnetic properties when damaged. While this study focused on mechanical injury rather than EMF exposure, it established that nerve tissue has inherent electromagnetic sensitivity that can be altered by various stressors. This foundational research helps explain why the nervous system might be particularly vulnerable to electromagnetic field exposure and why neurological symptoms are commonly reported in EMF sensitivity cases.

Original Figures

Diagram extracted from the original research document.

Page 1 - Figure 1. Electron spin resonance signals from two different frog sciatic nerves (contained in a flat quartz sample cell) before and after being severed by stretching (upper spectra) and before and after being pinched in forceps (lower spectra). Modulation amplitude: 16 gauss; temperature: 15°C.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
B. Commoner, J. L. Ternberg, E. Larsson (1969). ELECTRON SPIN RESONANCE SIGNALS IN INJURED NERVE.
Show BibTeX
@article{electron_spin_resonance_signals_in_injured_nerve_g5929,
  author = {B. Commoner and J. L. Ternberg and E. Larsson},
  title = {ELECTRON SPIN RESONANCE SIGNALS IN INJURED NERVE},
  year = {1969},
  
  
}

Quick Questions About This Study

The injured frog sciatic nerves exhibited electron spin resonance signals with g values ranging from 2.05 to 2.30 and unusually wide linewidths of 100 to 400 gauss, indicating ferromagnetic crystal formation.
When nerves are subjected to mechanical pressure or injury, small ferromagnetic crystals form within the tissue, which then produce detectable electron spin resonance signals with specific electromagnetic properties.
The ferromagnetic crystals formed in injured nerve tissue have temperature-dependent properties, causing their electron spin resonance signal characteristics to change as temperature fluctuates during measurement.
Unlike normal tissue ESR signals from enzymatic processes, these nerve signals showed variable g values, anisotropic properties, temperature dependence, and much wider linewidths indicating ferromagnetic rather than free radical origins.
The study found that only injured or mechanically stressed frog sciatic nerves produced the characteristic ferromagnetic ESR signals, suggesting healthy nerve tissue does not naturally exhibit these electromagnetic properties.