FOCAL NEUROLOGICAL LESIONS PRODUCED BY MICROWAVE IRRADIATION
W. H. Oldendorf · 1949
1949 research proved microwave radiation can create focused brain lesions, establishing early scientific evidence of neurological damage.
Plain English Summary
This 1949 study by researcher Oldendorf investigated how microwave radiation could create focused brain lesions in rabbits' cerebral cortex. The research demonstrated that microwave energy could produce specific, localized damage to brain tissue. This represents some of the earliest scientific documentation that microwave radiation can cause measurable neurological damage in living tissue.
Why This Matters
This research stands as a landmark in EMF health science, published just as radar technology was emerging from World War II. The fact that researchers in 1949 could produce focal brain lesions using microwave radiation should give us serious pause about today's ubiquitous microwave exposures. While modern devices operate at lower power levels than those used in Oldendorf's experiments, the fundamental physics remains the same: microwave energy can damage brain tissue. The science demonstrates that microwaves aren't just heating mechanisms, they're capable of creating precise neurological damage. What makes this study particularly significant is its early date, proving that concerns about microwave radiation's effects on the brain aren't recent hysteria but have solid scientific foundations stretching back over 70 years.
Finding
It has been reported that by means of microwave irradiations a focal lesion can be produced in the cerebral cortex of the rabbit without incising the scalp or opening the skull. The only injury to the scalp was a crusting lesion without bleb formation.
In their words
“It has been reported that by means of microwave irradiations a focal lesion can be produced in the cerebral cortex of the rabbit without incising the scalp or opening the skull. The only injury to the scalp was a crusting lesion without bleb formation.”
Figures from the Original Paper
Diagram extracted from the original research document.
Exposure Information
Specific exposure levels were not quantified in this study. Duration: 3 minutes
Study Details
To produce focal neurological lesions in the cerebral cortex of rabbits using microwave irradiation without surgical procedure.
Adult rabbits weighing about 3 kg were utilized. Under intravenous pentothal anesthesia, the animal'...
Rabbit 18: The animal received irradiation exactly as described. He responded in 30 minutes after ir...
Microwave irradiation can produce focal lesions in the cerebral cortex of rabbits without incising the scalp or opening the skull. The only injury to the scalp was a crusting lesion without bleb formation. The histological lesions produced are similar to those described in thermocoagulation experiments, except that microwave destruction apparently penetrates more deeply within the tissue. Since microwave diathermy heating is dielectric heating, it is presumed to be non-ionizing and any toxic effects would be those of excessive heating.
Show BibTeX
@article{focal_neurological_lesions_produced_by_microwave_irradiation_g6457,
author = {W. H. Oldendorf},
title = {FOCAL NEUROLOGICAL LESIONS PRODUCED BY MICROWAVE IRRADIATION},
year = {1949},
}