BYNUM, James Arthur · 1936
Researchers exposed 24 male university students to 1000 MHz microwave radiation at 10 mW/cm² while they performed memory tasks involving nonsense syllables. The study found no significant differences in learning or recall ability between students exposed to the radiation and those who weren't. This suggests that short-term exposure to this specific frequency and power level doesn't impair verbal memory function.
Paul J. Reiter · 1936
This 1936 German study tested shortwave radio frequencies (3.3-15 meter wavelengths) on rabbit brains and human patients with mental illness. Researchers found the effects appeared to be purely thermal (heat-based) rather than from specific electromagnetic properties, and reported promising therapeutic results for conditions like schizophrenia and dementia.
Henry Bordier · 1935
This 1935 French study by Dr. Bordier examined combining radiotherapy with electrical treatments (diathermy and galvanization) for treating infantile paralysis, now known as poliomyelitis. The research represents early medical use of electromagnetic fields as therapeutic tools. This historical work provides insight into how electromagnetic energy was applied medically before modern safety standards existed.
DEAN CLARK, JOSEPH HUGHES, HERBERT N. GASSER · 1935
This 1935 study by Clark investigated whether the slowest-conducting nerve fibers (called 'C fibers') could carry sensory information to the brain. Using cats, researchers found that these unmyelinated fibers do indeed transmit sensory signals and can trigger reflexes, establishing their role in the nervous system's communication network.
HAROLD NEIFELD, M.D. · 1935
This 1935 study by Neifeld examined how electric currents affected human breathing patterns, investigating both galvanic treatment and diathermy applications on respiratory movements. The research represents early scientific investigation into how electrical exposures directly influence basic human physiological functions. This work provides historical context for understanding how electromagnetic fields can affect vital bodily processes.
Bordier H. · 1935
This 1935 medical study examined combining radiotherapy with electromagnetic treatments (diathermy and galvanization) for treating infantile paralysis (poliomyelitis). The research represents early medical use of electromagnetic fields as therapeutic tools, predating modern safety research by decades.
Alfred Strassburger, Erwin Schliephake · 1934
This 1934 German study examined how ultrashort radio waves affected heat regulation and body temperature control in rabbits. The research explored whether RF radiation could disrupt the central nervous system's ability to maintain normal body temperature, potentially causing fever-like responses. This represents some of the earliest scientific investigation into how electromagnetic fields might interfere with basic biological processes.
Weissenberg, E. · 1934
This 1934 German study exposed 2,000 people to radio frequency fields at 0.1 watts and documented immediate nervous system effects including tingling sensations, blood vessel changes, and altered brain function. The researchers found that RF exposure caused measurable changes in body electrical resistance and disrupted normal balance reactions when specific brain regions were targeted.
Semadeni B · 1934
This 1934 German study examined fractionated iris radiation in rabbit eyes, investigating ultraviolet exposure effects and challenging claims about heat-induced cataracts. The research explored how different radiation patterns affect eye tissue, contributing early evidence about electromagnetic radiation's biological effects on vision.
Cepero-Garcia, G., Comas-Cespedes · 1933
This 1933 study examined how medical diathermy (therapeutic radiofrequency heating) affected both healthy and diseased eyes. The research investigated the therapeutic and potentially harmful effects of RF energy on eye tissues during medical treatment. This represents early documentation of radiofrequency effects on sensitive eye tissues.
E. D. Adrian · 1931
This 1931 research by Edgar Adrian examined how sensory nerve fibers carry and interpret electrical signals in the nervous system using electrometer technology. The study established foundational principles for understanding how nerves process electrical stimuli and convert them into sensations. This early work laid crucial groundwork for modern understanding of bioelectricity and how external electromagnetic fields might interfere with natural nerve signaling.
P. Grützner, R. Heidenhain · 1878
This 1878 German physiological study by Grützner and Heidenhain examined muscle innervation and blood vessel function in animal subjects. While conducted decades before modern EMF research, this foundational work explored how electrical signals control biological systems. The research contributed to early understanding of bioelectrical processes that modern EMF science builds upon.
Frank A. Brown, Jr.
This research by F. Brown examined how terrestrial electromagnetic fields influence animal orientation and navigation behaviors beyond visual cues. The study investigated connections between natural geomagnetic fields, circadian rhythms, and biological orientation mechanisms. This work helps establish the scientific foundation for understanding how animals naturally detect and respond to electromagnetic fields in their environment.
Finch ED, McLees BD
This technical report examined how radio-frequency radiation affects three important biological molecules: gamma globulin (immune system protein), acetylcholinesterase (nerve function enzyme), and chymotrypsin (digestive enzyme). The research investigated whether RF exposure could alter these critical proteins that regulate immune response, nervous system function, and protein digestion.
Unknown authors
This technical report examined coherent oscillations in biological systems and how they might interact with external electromagnetic stimulations, particularly extremely low frequency (ELF) fields. The research explored theoretical models for understanding how biological processes that naturally oscillate at specific frequencies could be influenced by external electromagnetic signals. This work builds on Frohlich's foundational theories about coherent vibrations in living systems.
Unknown authors
Researchers exposed rats to 1.28 GHz microwave radiation while they performed a vigilance task requiring attention and response to changing audio signals. The rats had to press levers to produce tones and detect changes to earn food rewards during 40-minute sessions. This study examined whether microwave exposure at frequencies similar to some wireless devices affects complex behavioral performance requiring sustained attention.
Unknown authors
Researchers exposed rat brain tissue to pulsed microwave radiation at various power levels (0.5 to 15.0 mW/cm²) and frequencies (16 and 32 Hz) to see if it affected calcium movement out of cells. They found no significant differences in calcium efflux between irradiated and control samples, suggesting these specific microwave conditions did not disrupt this cellular process.
Unknown authors
Scientists developed a modified mathematical model to explain how microwave and radiofrequency radiation might directly affect nerve and muscle cells. The model shows that oscillating electric fields can cause steady changes in the electrical activity of cell membranes, potentially altering normal nerve function. This provides a theoretical framework for understanding how RF exposure could impact electrically active tissues in the body.
Unknown authors
Scientists exposed conscious rats to low-power pulsed microwaves at 1 and 15 mW/cm² and measured blood flow changes in 20 different brain regions. Both exposure levels increased blood flow by 10-144% in 16 brain areas, with the largest increases in the pineal gland, hypothalamus, and temporal cortex. This demonstrates that microwave radiation at power levels similar to everyday devices can trigger significant metabolic changes in brain tissue.
Unknown authors
Researchers used Raman spectroscopy to examine how microwave radiation affects sphingomyelin lipids extracted from cow brain cell membranes. The study found that these membrane components, which undergo natural phase transitions at body temperature (30-40°C), showed changes in fluidity when exposed to microwaves. This matters because cell membrane integrity is crucial for proper brain function.
Unknown authors
This research review examined humans' ability to perceive Earth's natural magnetic field, gathering data from interviews with magnetically sensitive individuals. The study also referenced research on how animals and plants navigate using Earth's electromagnetic environment.
Unknown authors
Researchers exposed rabbits, guinea pigs, and rats to 2450 MHz microwave radiation (the same frequency used in microwave ovens) until their body temperature reached dangerous levels. They found that different parts of the brain heated up differently than the rest of the body, with the brain's surface getting significantly hotter than internal brain areas and rectal temperature. This demonstrates that microwave radiation creates uneven heating patterns in the brain that vary between species.
Unknown authors
This technical report examined how microwave radiation affects energy production systems in brain tissue and malignant brain tumors in laboratory animals. The research focused on cellular powerhouses (mitochondria) and key energy molecules like ATP, which fuel all cellular processes. Understanding these effects is crucial since our brains consume about 20% of our body's total energy.
Unknown authors
This study examined how microwave radiation affects nerve function in frog sciatic nerves, specifically testing whether blocking active transport (the Na-K pump) would eliminate microwave effects on nerve vitality. The research used ouabain to block the sodium-potassium pump that maintains nerve function, then measured how microwave exposure affected nerve activity under these conditions.
Unknown authors
Researchers exposed isolated rat brain nerve terminals (synaptosomes) to 960 MHz microwave radiation at 1.5 mW/g for 30 minutes and measured their ability to take up a tracer protein. The microwave exposure showed only a small, statistically insignificant increase in protein uptake compared to unexposed controls, while chemical stimulation produced clear effects.
