Editing Microwave auditory effect (section)

{{Short description|Concept in human perception of sound}}
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The '''microwave auditory effect''', also known as the '''microwave hearing effect''' or the '''Frey effect''', consists of the human perception of sounds induced by pulsed or modulated radio frequencies. The perceived sounds are generated directly inside the human head without the need of any receiving electronic device. The effect was first reported by persons working in the vicinity of [[radar]] [[transponder]]s during [[World War II]]. In 1961, the [[United States|American]] [[neuroscientist]] Allan H. Frey studied this phenomenon and was the first to publish information on the nature of the microwave auditory effect.<ref name=Frey>{{cite journal| journal=[[Journal of Applied Physiology]]| volume=17| pages=689–692| year=1962| title=Human auditory system response to modulated electromagnetic energy| author=Allan H. Frey| url=https://www.bibliotecapleyades.net/scalar_tech/the_hum/frey.htm| access-date=November 23, 2019| pmid=13895081| issue=4| doi=10.1152/jappl.1962.17.4.689| s2cid=12359057| archive-url=https://web.archive.org/web/20200328184923/https://www.bibliotecapleyades.net/scalar_tech/the_hum/frey.htm| archive-date=March 28, 2020| url-status=dead| url-access=subscription}}</ref><ref name="Slow Digital">{{cite web | url=http://slowdigital.com/2017/12/07/allan-frey-a-pioneer-of-radiation-research/ | title=Allan Frey: A Pioneer of Radiation Research | publisher=Slow Digital | date=December 7, 2017 | access-date=November 23, 2019 | archive-url=https://web.archive.org/web/20191122214404/http://slowdigital.com/2017/12/07/allan-frey-a-pioneer-of-radiation-research/ | archive-date=November 22, 2019 | url-status=dead }}</ref> The cause is thought to be thermoelastic expansion of portions of the auditory apparatus,<ref name="prevoccup">{{cite book|editor-last1=Levy|editor-first1=Barry S. |last1=Wagner|first1=Gregory R.|last2=Rest|first2=Kathleen M.|title=Preventing Occupational Disease and Injury |url=https://books.google.com/books?id=pM7DNkbVyQgC&q=microwave+injury|year=2005|publisher=[[American Public Health Association]]|isbn=978-0-87553-043-7}}</ref> although competing theories explain the results of [[holographic interferometry]] tests differently.<ref>[https://www.science.org/doi/abs/10.1126/science.209.4461.1144?sid=f514230e-1373-4da5-ad36-3689f428e21b Holographic Assessment of Microwave Hearing], [[Science (journal)|''Science'']] 05 Sep 1980: Vol. 209, Issue 4461, pp. 1144-1145</ref>{{explain|date=April 2024}}