PMID: 7082383Jan 1, 1982Paper

A comparative study of human sensory thresholds: 2450-MHz microwaves vs far-infrared radiation

Bioelectromagnetics
D R JustesenV Bruce-Wolfe

Abstract

Three male and female adults individually placed the ventral surface of the right and upright forearm against a 15-cm-diameter aperture in a wall of microwave-absorbent material. Ten-second exposures occurred to E-vector-vertically polarized, 2450-MHz-CW microwave (MW) fields. Comparable exposure to infrared (IR) waves was repeated with four of the six observers. Thresholds of detection of just-noticeable warming by MW and IR radiation were determined by the double-staircase psychophysical method. Although the exposed surface areas of male observers' arm were larger than those of female observers, thresholds of warming by either source of energy overlapped; the pooled means of irradiance at threshold are 26.7 mW/cm2 (MW) and 1.7 mW/cm2 (IR). Dosimetric measures on saline models indicated virtually perfect absorption of the incident IR, but nearly two-thirds of the MW energy was scattered. Accordingly, the 15-fold difference in means of MW and IR thresholds resolves to a 5-fold difference in threshold quantities of absorbed energy. In the light of the high correlation between thresholds of IR and MW irradiation (r = .97), it is concluded that the same set of superficial thermoreceptors was being stimulated, only less efficiently...Continue Reading

References

Dec 7, 1979·Science·S SternS M Michaelson
Apr 23, 1971·Science·N W KingR L Clarke
Jan 1, 1980·Bioelectromagnetics·Eleanor R Adair, B W Adams
Jan 1, 1980·Bioelectromagnetics·D R CarrollR L Clarke
Jul 1, 1960·IRE Transactions on Medical Electronics·E HENDLER, J D HARDY
Oct 1, 1961·Journal of Experimental Psychology·E EIJKMAN, A J VENDRIK

Citations

Jan 1, 1997·Bioelectromagnetics·D W BlickJ H Merritt
Nov 25, 2003·Bioelectromagnetics·Eleanor R Adair, David R Black
Nov 25, 2003·Bioelectromagnetics·J A D'AndreaJ O de Lorge
Jan 1, 1994·Bioelectromagnetics·D O BrownE C Elson
Jan 1, 1985·Bioelectromagnetics·V Bruce-Wolfe, Eleanor R Adair
Jul 25, 2007·Progress in Brain Research·J A D'AndreaEleanor R Adair
Apr 1, 1992·Physics in Medicine and Biology·J H Bernhardt
Jan 1, 1985·The Journal of Microwave Power and Electromagnetic Energy : a Publication of the International Microwave Power Institute·R A Budd

Related Concepts

Infrared Rays
Ultrahigh Frequency Waves
Sensory Thresholds

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Lipidomics & Rhinovirus Infection

Lipidomics can be used to examine the lipid species involved with pathogenic conditions, such as viral associated inflammation. Discovered the latest research on Lipidomics & Rhinovirus Infection.

Glut1 Deficiency

Glut1 deficiency, an autosomal dominant, genetic metabolic disorder associated with a deficiency of GLUT1, the protein that transports glucose across the blood brain barrier, is characterized by mental and motor developmental delays and infantile seizures. Follow the latest research on Glut1 deficiency with this feed.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Alzheimer's Disease: MS4A

Variants within the membrane-spanning 4-domains subfamily A (MS4A) gene cluster have recently been implicated in Alzheimer's disease in genome-wide association studies. Here is the latest research on Alzheimer's disease and MS4A.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Laryngeal Neoplasms

Laryngeal Neoplasms occur in the Larynx and are typically associated with smoking and alcohol consumption. Discover the latest research on Laryngeal Neoplasms here.

Cell Atlas Along the Gut-Brain Axis

Profiling cells along the gut-brain axis at the single cell level will provide unique information for each cell type, a three-dimensional map of how cell types work together to form tissues, and insights into how changes in the map underlie health and disease of the GI system and its crosstalk with the brain. Disocver the latest research on single cell analysis of the gut-brain axis here.