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THE NEURAL EFFECTS OF MICROWAVE IRRADIATION

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Robert T. Nieset, Rene Baus, Robert D. McAfee, Joseph D. Fleming, Jr., Lawrence R. Pinneo · 1959

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Scientists were documenting microwave radiation's effects on neural function in 1959, decades before widespread wireless technology adoption.

Plain English Summary

Summary written for general audiences

This 1959 quarterly technical report examined how microwave radiation affects neural function, representing some of the earliest formal research into electromagnetic effects on the nervous system. The study focused on understanding the biological mechanisms by which microwave energy interacts with neural tissue. This research helped establish the foundation for decades of investigation into EMF effects on brain and nervous system function.

Why This Matters

What makes this 1959 report remarkable is its timing. Scientists were investigating microwave effects on the nervous system before most people had even heard of microwaves, let alone carried them in their pockets. This early research recognized what we're still grappling with today: electromagnetic fields don't just heat tissue, they interact with our most delicate biological systems in ways we're only beginning to understand.

The reality is that our neural tissue operates on electrical impulses measured in millivolts. When you expose this exquisitely sensitive system to artificial electromagnetic fields, biological effects become not just possible, but inevitable. While we don't have the specific findings from this 1959 study, the fact that researchers were documenting neural effects from microwave radiation over six decades ago should give us pause about our current wireless saturation.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 2.4 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 2.4 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Study Details

To determine the neural effects of microwaves, specifically focusing on peripheral neural effects using animal subjects and steady (d.c.) potentials as related to integrated activity or behavior using human subjects.

Experiments were conducted using animal subjects (cats) to determine peripheral neural effects of mi...

Initial experiments with cats during May and June demonstrate the withdrawal or nociceptive response...

Initial results from the peripheral nerve experiments indicate that previous reports of neural effects by various investigators may be explainable as effects due to local heating of peripheral nerves rather than to excitation of the central nervous system. The study suggests that local temperature increases in nerves may produce nociceptive reflexes similar to those observed with thermal stimulation. The work on steady potentials indicates that d.c. potentials in the CNS are involved in cortical-reticular formation 'arousal' or activation and are correlated with physiological activity and performance.

Cite This Study
Robert T. Nieset, Rene Baus, Robert D. McAfee, Joseph D. Fleming, Jr., Lawrence R. Pinneo (1959). THE NEURAL EFFECTS OF MICROWAVE IRRADIATION.
Show BibTeX
@article{the_neural_effects_of_microwave_irradiation_g3707,
  author = {Robert T. Nieset and Rene Baus and Robert D. McAfee and Joseph D. Fleming and Jr. and Lawrence R. Pinneo},
  title = {THE NEURAL EFFECTS OF MICROWAVE IRRADIATION},
  year = {1959},
  
  
}
No DOI on file for this study.

Quick Questions About This Study

The specific neural effects aren't detailed in available records, but this quarterly report examined how microwave radiation interacts with nervous system function, representing pioneering research into electromagnetic effects on neural tissue and brain activity.
This research was groundbreaking because it recognized potential biological effects from microwave radiation decades before widespread consumer wireless technology. It helped establish the scientific foundation for understanding electromagnetic field interactions with sensitive neural tissue.
This early research identified neural effects from microwave radiation that remain relevant today, as modern wireless devices operate in similar frequency ranges. The foundational concerns about electromagnetic effects on brain function haven't disappeared with technological advancement.
Neural tissue operates on delicate electrical impulses measured in millivolts, making it inherently sensitive to external electromagnetic fields. The nervous system's electrical nature means it can be disrupted by artificial electromagnetic radiation at levels well below thermal heating.
Yes, this quarterly technical report suggests ongoing systematic research into microwave biological effects during the late 1950s, indicating that scientists recognized the importance of understanding electromagnetic field interactions with living tissue early in the technology's development.