Browse 8,655 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 2,753 studies in Brain & Nervous System
M. F. Tansy et al. · 1971
This 1971 study exposed rats to high-frequency radio waves and found significant changes in their digestive systems. The exposed animals showed weakened muscle contractions in their colons and faster stomach emptying compared to unexposed controls. This research demonstrates that RF radiation can disrupt normal gastrointestinal function in mammals.
Russell L. Carpenter, Elliot M. Livstone · 1971
Researchers exposed mealworm beetle pupae to 10 GHz microwave radiation and found that only 24% developed normally compared to 90% of unexposed controls. When they heated pupae to the same temperatures using regular heat instead of microwaves, 80% developed normally, proving the damage was caused by the microwaves themselves, not the heat they generated.
Allan H. Frey · 1971
This 1971 review by Allan Frey examined early research showing that low-power radiofrequency energy can affect biological functions in living organisms. The paper analyzed sparse Western research data and explored potential mechanisms behind these biological effects. Frey concluded that modulated RF energy poses possible hazards to personnel even at low power levels.
Ye. A. Lobanova, A.V. Goncharova · 1971
This 1971 Russian study examined how ultra-short and short wave electromagnetic radiation affected conditioned reflexes (learned behaviors) in white rats. The research investigated whether EMF exposure could disrupt the nervous system's ability to form and maintain learned responses. While specific findings aren't available, this early work explored EMF's potential impact on brain function and behavior.
Unknown authors · 1971
This 1971 investigation examined whether secret electromagnetic beam operations were connected to brain tumor cases, particularly astrocytomas. The study appears to have investigated potential links between undisclosed electromagnetic radiation exposure and neurological health effects. This represents early recognition that classified electromagnetic technologies might pose health risks to exposed populations.
J. B. MULDER · 1971
This 1971 review examined how electromagnetic energy waves, including visible and invisible light, affect animal behavior patterns. Researchers found that various forms of electromagnetic exposure altered reproductive ability, offspring sex ratios, activity levels, and lifespan in animals. However, studies showed widely inconsistent results even under seemingly similar conditions, highlighting the need for better controlled research.
Sol M. Michaelson, Joe W. Howland, Wm. B. Deichmann · 1971
Researchers exposed dogs to high-intensity microwave radiation at two frequencies (24,000 MHz and 1,285 MHz) for extended periods - up to 2,631 hours over 20 months. Despite power levels 400-500 times higher than typical cell phone exposure, no significant health effects were observed in the animals.
Lobanova EA, Goncharova AV · 1971
Soviet researchers in 1971 studied how ultrashort and short wave electromagnetic fields affected learned behaviors in white rats. This early research examined whether RF radiation could disrupt the conditioned reflexes that animals use for survival and adaptation. The study represents pioneering work investigating how electromagnetic fields might interfere with basic brain and nervous system functions.
Roger C. Nealeigh et al. · 1971
Researchers exposed white rats to 2.45 GHz microwave radiation (the same frequency used in microwave ovens and WiFi) at 50 mw/cm² and found it altered their performance on a Y-maze learning task. This 1971 study was among the first to demonstrate that microwave radiation can affect cognitive function and learning ability in laboratory animals.
Robert W. Neidlinger · 1971
This 1971 study by Neidlinger examined microwave radiation's ability to cause cataracts in humans. The research confirmed that microwave exposure can produce cataracts, though the exact mechanism wasn't well understood. The author called for systematic monitoring of workers exposed to microwaves to better understand this eye damage risk.
Shapiro AR, Lutomirski RF, Yura HT · 1971
This 1971 study developed mathematical models to calculate how microwave radiation penetrates and heats the human head structure. Researchers found that simplified flat-surface models drastically underestimate radiation absorption, while their spherical head model revealed complex heating patterns within brain tissue layers.
N. N. OSBORNE, B. POWELL, G. A. COTTRELL · 1971
This 1971 study examined how radiofrequency electrical stimulation affected amino acid levels in snail brain tissue. Researchers used Helix pomatia snails to investigate whether RF energy could alter brain chemistry at the molecular level. The study represents early biological research into how electromagnetic fields might influence nervous system function.
Sol M. Michaelson · 1971
This comprehensive 1971 review examined the biological effects of microwave radiation exposure, finding that organisms can experience thermal stress at specific frequencies and power levels. The analysis covered effects on multiple body systems including the eyes, blood formation, thyroid, reproductive organs, nervous system, and cardiovascular system. The review aimed to separate scientifically substantiated effects from speculative claims about microwave exposure risks.
T. W. Barrett · 1971
This 1971 theoretical physics study examined how electromagnetic fields carry information and how biological sensory systems might process that information. The research described different types of information units (quanta) that can exist within electromagnetic fields, including both amplitude and frequency modulated forms. The study concluded that researchers must determine the minimum information unit that any biological sensory system can detect.
B. Servantie, G. Bertharion, R. Joly · 1971
This 1971 French study exposed white rats to radar-frequency electromagnetic radiation and found that the animals became less sensitive to muscle-paralyzing drugs (curare-like agents). The researchers were investigating whether radar waves have biological effects beyond just heating tissue, and discovered that EMF exposure appeared to alter how the nervous system responds to pharmaceutical compounds.
Solomon H. Snyder · 1971
This 1971 research investigated how microwave radiation affects brain chemicals like serotonin and norepinephrine, which regulate mood, sleep, and stress responses. The study examined whether microwaves alter how quickly these neurotransmitters are produced and broken down, along with effects on the enzymes that metabolize them. This early work explored potential neurological impacts of microwave exposure decades before widespread wireless device use.
B. Servantie, G. Bertharion, R. Joly · 1971
This 1952 French study examined how very high frequency electromagnetic radiation affected seizure sensitivity in white mice, using pentetrazol (a seizure-inducing drug) as a test measure. The research represents one of the earliest investigations into how radio frequency EMF exposure might influence nervous system function. This pioneering work helped establish a foundation for understanding EMF effects on brain activity and seizure susceptibility.
Yu. A. Kholodov, G. R. Solov'yeva · 1971
This 1971 Soviet research investigated how magnetic fields from solenoids (electromagnetic coils) affect the central nervous system in rodents. The study used EEG monitoring and conditioned reflex testing to measure neurological changes from magnetic field exposure. This represents some of the earliest scientific investigation into how artificial magnetic fields might influence brain function.
Stavinoha, W.B., Pepelko, Barbara, Smith, Paul W. · 1970
This 1970 study examined how microwave radiation affects cholinesterase, a crucial brain enzyme that breaks down acetylcholine (a key neurotransmitter). Researchers used rats to investigate whether microwave exposure could inactivate this enzyme in brain tissue. The research represents early scientific investigation into how microwave radiation might interfere with normal brain chemistry.
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.
Solomon H. Snyder, M.D. · 1970
This 1970 study investigated how microwave radiation affects the turnover rates of serotonin and norepinephrine, two critical neurotransmitters that regulate mood, behavior, and brain function in rats. The research represents early scientific exploration into whether microwave exposure can disrupt the brain's chemical messaging system. This work laid groundwork for understanding potential neurological effects from microwave radiation exposure.
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.
Charles C. Conley · 1970
This 1970 review examined the first decade of research on how magnetic fields weaker than Earth's natural field affect living organisms. Scientists found that invertebrates, single-celled organisms, and plants showed measurable changes in growth, reproduction, aging, and behavior when exposed to very low or nearly zero magnetic fields.
Unknown authors · 1970
This 1970 conference brought together researchers studying how electrical fields affect the nervous system, focusing on medical applications like electrosleep and electroanesthesia. The gathering explored bioelectricity and medical instrumentation during an era when scientists were beginning to understand how external electrical fields could influence brain and nerve function. This early work laid groundwork for understanding both therapeutic and potentially harmful effects of electromagnetic fields on human biology.
Walter J. Geeraets · 1970
This 1970 research examined how various forms of radiation affect the human eye, including ionizing radiation, ultraviolet, infrared, microwaves, and radio frequencies. The study focused on understanding radiation-induced eye damage and protection strategies. This early work helped establish foundational knowledge about electromagnetic radiation's effects on one of our most sensitive organs.