James D. Grissett · 1972
This 1972 technical report by Grissett developed a new measurement technique for scotopic critical flicker frequency, a visual test that can indicate psychophysiological stress levels. The research focused on creating better methods to assess how stress affects human visual perception in low-light conditions. This work laid groundwork for understanding how environmental stressors, including electromagnetic fields, might impact human physiology through measurable changes in visual function.
William M. Houk, M.D. · 1972
This 1972 thesis conducted epidemiological surveys on workers occupationally exposed to microwave radiation from radar systems. The research examined health patterns in radar operators and technicians who faced regular exposure to microwave frequencies during their work. This represents early systematic investigation into potential health effects from occupational microwave exposure.
Sol M. Michaelson · 1972
This 1972 study examined how humans perceive microwave radiation through skin sensations, finding that people can feel warmth from microwaves within 1-4 seconds at specific power levels. Researchers established thermal sensation thresholds for 3,000 MHz and 10,000 MHz frequencies when applied to facial skin areas. The study showed that microwave perception occurs through the body's natural heat-sensing mechanisms.
Charles Merckel · 1972
This 1972 review examined microwave radiation hazards from radar systems and early microwave ovens, finding proven lethal effects in animals and cataract formation in humans. The study warned about increasing commercial and domestic microwave use creating new exposure risks, especially for people with medical implants like pacemakers.
A. Frey, R. Messenger, E. Eichert · 1972
This 1972 study by researcher Allan Frey investigated the "RF sound phenomenon" where people hear sounds when exposed to radiofrequency energy directed at their heads. The research successfully created a portable device to demonstrate this effect and explored whether RF energy could generate perceived speech, finding that traditional speech synthesis methods didn't work for RF-induced sounds.
King, Justesen, Clarke · 1971
Researchers trained rats to detect microwave radiation using behavioral conditioning techniques. The rats could reliably sense 12.25-centimeter microwaves at power levels as low as 0.5 milliwatts per gram. This demonstrates that mammals can physically detect microwave energy at relatively low exposure levels.
M. DEROCHE · 1971
This 1971 French study examined biological disturbances in operating room technicians exposed to high-frequency electromagnetic fields during their work. The research focused on occupational health effects from RF radiation sources commonly found in medical facilities at that time. This represents early recognition that workplace EMF exposure could affect human health.
Lawrence T. Odland · 1971
The U.S. Air Force conducted an evaluation of eye-related health effects in former military personnel who worked with radar systems. This 1971 technical report examined whether occupational radar exposure was associated with ophthalmological findings in these service members. The study represents early military recognition of potential health effects from high-powered electromagnetic radiation exposure.
M. DEROCHE · 1971
French researchers in 1971 studied operating room technicians exposed to high-frequency electromagnetic fields from radio transmission equipment over 10 years. They found biological disturbances among workers but excluded lower frequencies (15 KHz to 3 MHz) from their investigation after finding these didn't cause problems above normal population levels.
V. M. Malyshev, S. I. Abolonin · 1970
This 1970 Soviet review examined a comprehensive monograph documenting both acute and chronic health effects from UHF (ultra-high frequency) electromagnetic wave exposure in humans. The work catalogued clinical disorders ranging from immediate effects after high-intensity exposure to long-term health problems from prolonged low-level microwave radiation. This represented the first systematic documentation of acute microwave-related disorders in Soviet medical literature.
Perrin S. Cohen · 1970
Researchers exposed dogs to electric shocks and studied how they learned to time their responses to escape the shock. Dogs had to wait a minimum time before their response would turn off the shock, and they learned to precisely time their actions. Higher shock intensity didn't affect this timing behavior when minimum wait times were required.
Nancy Williams King · 1969
This 1969 study exposed rats to 2450 MHz microwave radiation (the same frequency used in microwave ovens) while they performed behavioral tasks involving tongue-licking responses. The researchers found that the microwave exposure affected the rats' ability to perform learned behaviors, even at levels considered 'safe' by 1960s standards.
M. Phlák, V. Servus, J. Schubertová · 1969
This 1969 study examined microwave radiation hazards for radar technicians and proposed screening methods to protect workers. The research addressed occupational health concerns about microwave exposure in military and civilian radar operations. This early work helped establish the foundation for workplace safety standards around microwave radiation.
Ermakov EV · 1969
This 1969 Soviet research examined how chronic exposure to ultrahigh frequency electromagnetic fields causes astheno-autonomic disorders in humans. The study investigated the biological mechanisms behind neurological symptoms like fatigue, weakness, and autonomic nervous system dysfunction in workers exposed to radiofrequency radiation. This represents early occupational health research documenting EMF-related health effects decades before widespread consumer wireless technology.
Eugene W. Plischke, Warren F. Wolff · 1969
This 1969 study by Plischke examined RF radiation exposure among construction workers near broadcast towers, focusing on electrical shocks, burns, and microwave hazards. The research documented occupational health risks from radio frequency radiation in high-exposure work environments. This represents early recognition that RF radiation posed real workplace safety concerns decades before widespread public awareness.
James G. Terrill, Jr. · 1969
This 1969 study examined adverse health reactions among workers exposed to microwaves, lasers, and X-rays in occupational settings. The research documented harmful effects from electromagnetic radiation across different parts of the spectrum, providing early evidence of workplace EMF hazards. This represents foundational work linking electromagnetic exposure to human health problems in professional environments.
J. A. Tanner, C. Romero-Sierra, S. J. Davie · 1969
Researchers in 1969 exposed birds to microwave radiation at 45 mW/cm² to study their escape reactions and understand how their bodies respond to electromagnetic fields. This early experiment explored how wildlife reacts to microwave exposure and the physiological mechanisms behind their behavioral responses. The study represents foundational research into how electromagnetic fields affect animal behavior and biology.
Christopher H. Dodge · 1969
This 1969 review by Christopher Dodge examined hundreds of Soviet and Eastern European studies on microwave radiation effects in humans, focusing on clinical studies and workplace exposure surveys. The review highlighted significant findings from communist bloc research that was largely unknown in the West. This work revealed decades of human research showing biological effects from radiofrequency radiation exposure.
Devaux, P · 1969
This 1969 French research examined the physiological dangers of very powerful radar stations on human health, focusing on nervous system, digestive, and visual disorders from electromagnetic emissions. The study represents early scientific recognition that high-power radar systems could cause biological effects in humans. This work helped establish the foundation for understanding occupational EMF exposure risks decades before consumer wireless devices became widespread.
Afanas'yev BG · 1968
Soviet researchers studied ship specialists exposed to microwave radiation and found symptoms resembling adrenal insufficiency, including weakness, fatigue, and low blood pressure. The study examined how the hypothalamic-adrenal system responds to prolonged microwave exposure. This suggests microwave radiation may disrupt the body's stress response system.
V. G. CHALOV · 1968
Soviet researchers exposed 97 people to ultra-high frequency (UHF) radio waves at power densities of 10-100 microwatts per cm² over extended periods. The study found various pathological changes in the ear, nose, and throat organs, along with reduced ability to detect odors and decreased speech discrimination compared to unexposed controls.
Gerald A. Gellin, Vernon E. Rose, Charles H. Powell · 1968
Researchers examined eight microwave oven repair workers for health effects and found five had vision problems requiring new glasses, plus one worker developed impotence and unusual skin inflammation. Testing revealed some ovens emitted twice the recommended safe levels of microwave radiation when their cabinets were removed during repairs.
F. G. Hirsch, D. R. McGrann, T. D. Hamish · 1968
This 1968 study examined how high-density pulsed electromagnetic fields affected psychological and behavioral responses in laboratory rodents, including maze learning performance. The research represents early scientific recognition that electromagnetic energy exposure could influence brain function and behavior, not just physical tissue heating.
F. G. Hirsch, D. R. McGiboney, T. D. Harnish · 1968
This 1968 study by F.G. Hirsch examined how high-density pulsed electromagnetic energy affected psychological behavior in laboratory rats, specifically focusing on maze performance. The research represents early scientific investigation into whether electromagnetic fields could influence brain function and behavior patterns. This work helped establish the foundation for understanding potential neurological effects of EMF exposure decades before widespread wireless technology adoption.
Constant PC, Jr · 1967
This 1967 study investigated whether humans can actually hear electromagnetic waves, particularly microwaves, as some people had reported. The research aimed to determine if this auditory sensation was real and whether people could learn to detect EM radiation through hearing.
