6,486 Studies Reviewed. 85.2% of Original Studies Found Biological Effects. The Evidence is Clear.

EMF Research Studies

Browse 6,486 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.

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Showing 2,030 studies in Brain & Nervous System

THE EFFECT OF MICROWAVE RADIATION ON EVOKED TACTILE AND AUDITORY CNS RESPONSE IN CATS

Arthur W. Guy, James C. Lin, Fredric A. Harris · 1972

The study exposed cat heads to 915 MHz microwave radiation and measured evoked tactile and auditory CNS responses. Changes in latency and/or amplitude occurred at a mean threshold of about 5 mW/cm2. Temperature rises were always associated with the changes. Variations in results were noted with different electrode compositions, suggesting possible artifacts.

A PSYCHOPHYSICAL STUDY OF THE RF SOUND PHENOMENON

A. Frey, R. Messenger, E. Eichert · 1972

The study investigated the RF sound phenomenon, where humans perceive sound when their head is illuminated with pulsed RF energy. In phase one, a portable RF sound demonstration unit operating at 1.2 GHz was assembled and used to demonstrate the phenomenon. Phase two experiments showed that perceived loudness is a function of peak power density once a minimum pulse width is used, and that pulse repetition rate is the dominant parameter for sound quality. A threshold peak power density of 80 mW/cm² was derived by extending the loudness curve, though not with optimal parameters, and average power density was not particularly meaningful for this phenomenon. Phase three found that vocoder technology and periodicity pitch rules could not generate speech perception via RF sound.

CHANGE IN METABOLISM OF NITROGENOUS SUBSTANCES IN ANIMAL NERVE TISSUE UNDER EFFECT OF ELECTROMAGNETIC FIELD OF SUPERHIGH FREQUENCY

L. I. Mishchenko, S. P. Frenkel · 1972

Researchers studied ammonia, glutamine, glutamate, amide nitrogen of proteins, AMP, and AMP desaminase activity in the brain of rats exposed to electric and magnetic fields of superhigh frequency. Electric field exposure increased ammonia, amide nitrogen in proteins, and AMP desaminase activity, which the authors suggest may be largely due to a decrease in ammonia and glutamine. Magnetic field exposure decreased ammonia and glutamine while increasing AMP and amide nitrogen in brain proteins.

PECULIARITIES OF NITROGEN METABOLISM IN THE RAT BRAIN UNDER EFFECT OF IMPULSIVE ELECTROMAGNETIC FIELD OF LOW FREQUENCY

F. A. Kolodub, H. I. Evtushenko · 1972

Researchers studied nitrogen metabolism in rat brain during exposure to a 7 kHz impulsive electromagnetic field at 24 and 72 kA/m. At 72 kA/m, ammonia and glutaminic acid content decreased while amide nitrogen of proteins was unchanged and adenylic acid desamination and glutamine synthesis were inhibited due to ATP deficit. At 24 kA/m with chronic exposure, ammonia shifts were phase-like and occurred without a corresponding rise in glutamine.

CLINICAL ASPECTS OF IRRADIATIONS IN THE SHF-RANGE

Tyagin, N. V. (Nikolay Vasil'yevich) · 1971

The book presents overall characteristics of SHF fields, their applications, measurement principles, and biological effects on the nervous, cardiovascular, circulatory systems, metabolism, and certain animal and human organs. It discusses mechanisms of action and shows that prolonged repeated irradiations produce clinical manifestations divided into asthenic, vegetative-vascular, and diencephalic syndromes of varying severity. Data on permissible exposure levels, medical expert testimony, and protection measures are presented, indicating that workplace measures can nearly eliminate radiation exceeding allowable limits.

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