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

Brain & Nervous SystemNo Effects Found

THE EFFECTS OF UHF RADIO FIELDS ON RETENTION IN A VERBAL LEARNING TASK

BYNUM, James Arthur · 1936

Twenty-four male university students underwent a test with a 1000 MHz centimeter wave UHF field at 10 mW/cm2. The experiment used an interpolated learning paradigm with word association groups. After four days of practice memorizing nonsense syllables, subjects were divided and each received four experimental trials. One hour after original learning was complete, the total number of correctly recalled responses was measured. The study reported no significant differences between irradiated and non-irradiated groups.

VIGILANCE BEHAVIOR IN RATS EXPOSED TO 1.28 GHZ MICROWAVE IRRADIATION

Unknown authors

Eight male hooded rats performed a vigilance task pressing two levers for tones and food pellets during 40-minute sessions in Styrofoam boxes located in the far zone region of a horn in an anechoic chamber. After stable responding, they were exposed to 1.28 GHz microwaves pulsed at 380 pps with 2 µsec pulses at power densities from 0 to 15 mW/cm². At 15 mW/cm² all eight rats showed decreased observing lever response rates, with some ceasing responding, but most adapted by the third exposure. Seven rats decreased response rates at 10 mW/cm² and three showed disruption at 5.5 mW/cm², while other behavioral indices were less sensitive.

EFFECTS OF LOW POWER MICROWAVES ON THE LOCAL CEREBRAL BLOOD FLOW OF CONSCIOUS RATS

Unknown authors

Researchers measured local cerebral blood flow in multiple brain regions of conscious rats using a radioactive iodoantipyrine technique. Rats were exposed for 30 minutes to pulsed microwaves at 1 mW/cm² or 15 mW/cm² average power density, or sham exposure. Both exposure levels increased blood flow by 10 to 144 percent in 16 of 20 regions, with the largest significant increases in the pineal, hypothalamus, and temporal cortex at 1 mW/cm² and in the pineal, temporal cortex, inferior colliculus, and medial geniculate at 15 mW/cm².

MICROWAVE EFFECTS ON NATURALLY OCCURRING CELL MEMBRANE CONSTITUENTS: A RAMAN SPECTROSCOPIC STUDY OF BOVINE BRAIN SPHINGOMYELINS

Unknown authors

The liposomes undergo thermally induced phase transitions between 30 °C and 40 °C. Samples were exposed to continuous-wave 2.4 GHz microwave radiation at power levels up to 25 mW/cm² while held at 36 °C. An increase in bilayer fluidity appeared above a threshold of 10–15 mW/cm², and at ~20 mW/cm² the fluidity change matched a ~3 °C temperature shift while bulk temperature rose only ~1 °C. The authors concluded a steady-state temperature difference exists between the bilayer interior and the surrounding aqueous medium under these exposure conditions.

HUMAN PERCEPTION OF THE EARTH'S MAGNETIC FIELD

Unknown authors

The paper reviews research on the ability of humans to perceive the natural electromagnetic fields of the earth and includes new data from interviews with sensitive persons. The review also references studies showing that animals and plants can orient to the earth's electromagnetic field. Sun Bear, an American Indian medicine man, reports seeing earth energy fields, and Dr. Valerie Hunt's studies indicate some people may see invisible fields as accurately as instrumentation. Dr. William Tiller proposes a model where the human nervous system acts as an antenna to detect exterior field changes.

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