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Maximilian von Frey






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Maximilian von Frey
Born16 November 1852
Salzburg, Austrian Empire
Died25 January 1932 (1932-01-26) (aged 79)
NationalityGerman
Alma materUniversity of Leipzig
Scientific career
Fieldsphysiology
InstitutionsWürzburg
Zurich

Maximilian (Max) Ruppert Franz von Frey (16 November 1852 – 25 January 1932) was an Austrian-German physiologist who was born in Salzburg.

He received his doctorate from the University of Leipzig in 1877, and subsequently worked at Carl Ludwig's Physiological Institute in Leipzig. Later he was a professor of physiology at the Universities of Würzburg and Zurich.

Frey's primary work in Leipzig dealt with the circulatory system, and he is credited with developing an early prototype of a heart-lung machine.[1] He is remembered for his work involving cutaneous sensory mechanoreceptors. During the 1890s, Frey proposed that pain is an independent tactile quality, alongside touch, heat and cold, and that it is associated with stimulation of high-threshold free nerve endings. He described the skin as a mosaic of discrete spots, each sensitive to one or another of these stimuli.[2] He created a unique type of esthesiometer, now referred to as a von Frey hair, which consisted of various calibrated monofilaments. These filaments can be used to determine the threshold force required to produce the sensation of touch or pain.

References

[edit]
  1. ^ Zimmer, Heinz-Gerd (September 2003). "The heart-lung machine was invented twice--the first time by Max von Frey". Clinical Cardiology. 26 (9). United States: 443–5. doi:10.1002/clc.4960261011. ISSN 0160-9289. PMC 6654554. PMID 14524605.
  • ^ Norrsell U, Finger S and Lajonchere C (1999). "Cutaneous sensory spots and the "law of specific nerve energies": history and development of ideas" (PDF). Brain Research Bulletin. 48 (5): 457–465. doi:10.1016/S0361-9230(98)00067-7. PMID 10372506. Archived from the original (PDF) on 2011-09-30.
  • [edit]
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