About: Gunnar Svaetichin

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Gunnar Nils Toivo Svaetichin (13 January 1915 – 23 March 1981) was a Swedish-Finnish-Venezuelan physiologist who, in 1956, showed by examining the external layers of fish retinas that electroretinograms display particular sensitivity to three different groups of wavelengths in the areas of blue, green and red. This provided the first biological demonstration in support of the Young-Helmholtz trichromatic theory. He also gave name to the S-potential, which was the first experimental evidence that opponency existed in the visual system.

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rdf:type	Thing foaf:Person person dul:NaturalPerson Eukaryote Homo sapiens Human Animal animal eukaryote scientist species schema:Person Scientist yago:Biologist109855630 yago:CausalAgent100007347 yago:LivingThing100004258 yago:Object100002684 yago:Organism100004475 yago:Person100007846 yago:PhysicalEntity100001930 yago:Physiologist110429965 yago:YagoLegalActor yago:YagoLegalActorGeo yago:Scientist110560637 yago:Whole100003553 yago:WikicatPhysiologists
rdfs:label	Gunnar Svaetichin (en) Gunnar Svaetichin (sv)
rdfs:comment	Gunnar Nils Toivo Svaetichin, född 13 januari 1915 i Karis, död 23 mars 1981 i Caracas, var en finländsk läkare. Svaetichin blev medicine licentiat från Helsingfors universitet 1944 och medicine doktor från Karolinska institutet i Stockholm 1951. Han tillhörde Ragnar Granits forskargrupp och flyttade 1948 över till Sverige. Han verkade från 1955 till sin död som forskare i neurofysiologi vid Instituto Venezolano de Neurologia e Investigaciones Cerebrales i Caracas. En viktig insats av honom var utvecklandet av en mikroelektrod för registrering av impulser från individuella neuroner. Under andra världskriget uppfann han enkla pappskenor för immobilisering av skadade lemmar, speciellt för transport av sårade. (sv) Gunnar Nils Toivo Svaetichin (13 January 1915 – 23 March 1981) was a Swedish-Finnish-Venezuelan physiologist who, in 1956, showed by examining the external layers of fish retinas that electroretinograms display particular sensitivity to three different groups of wavelengths in the areas of blue, green and red. This provided the first biological demonstration in support of the Young-Helmholtz trichromatic theory. He also gave name to the S-potential, which was the first experimental evidence that opponency existed in the visual system. (en)
foaf:name	Gunnar Svaetichin (en)
name	Gunnar Svaetichin (en)
foaf:depiction
birth place	Karis
death place	Caracas
death place	Caracas, Venezuela (en)
death date	1981-03-23 (xsd:date)
birth place	Karis, Finland (en)
birth date	1915-01-13 (xsd:date)
dcterms:subject	Finnish emigrants to Venezuela 1915 births 1981 deaths Finnish expatriates in Sweden Finnish physiologists
Wikipage page ID	26478953 (xsd:integer)
Wikipage revision ID	1050142913 (xsd:integer)
Link from a Wikipage to another Wikipage	Caracas Electroretinography Retina University of Helsinki Venezuelan people Visual system Opponent process Finnish emigrants to Venezuela 1915 births 1981 deaths Winter War Venezuelan Institute for Scientific Research Finnish expatriates in Sweden Karis Finnish physiologists Physiology Ragnar Granit Wavelength Young–Helmholtz theory Finnish people Swedish people
Link from a Wikipage to an external page	http://www.americanscientist.org/issues/id.841,y.2003,no.1,content.true,page.1,css.print/issue.aspx https://books.google.com/books%3Fid=eh7xNAAACAAJ&dq=inauthor:%22Boris+D.+Drujan%22&hl=en&ei=_UNvTM-SH4nCsAPGmsCzCw&sa=X&oi=book_result&ct=result&resnum=4&ved=0CDoQ6AEwAw https://web.archive.org/web/20100814161254/http:/hubel.med.harvard.edu/book/ch8.pdf
sameAs	Gunnar Svaetichin Gunnar Svaetichin Gunnar Svaetichin Gunnar Svaetichin Gunnar Svaetichin Gunnar Svaetichin Gunnar Svaetichin
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thumbnail	wiki-commons:Special:FilePath/Gunnarlab.jpg?width=300
birth date	1915-01-13 (xsd:date)
birth name	Gunnar Nils Toivo Svaetichin (en)
caption	Gunnar Svaetichin in his laboratory (en)
death date	1981-03-23 (xsd:date)
known for	Discovery of S-potentials (en)
has abstract	Gunnar Nils Toivo Svaetichin (13 January 1915 – 23 March 1981) was a Swedish-Finnish-Venezuelan physiologist who, in 1956, showed by examining the external layers of fish retinas that electroretinograms display particular sensitivity to three different groups of wavelengths in the areas of blue, green and red. This provided the first biological demonstration in support of the Young-Helmholtz trichromatic theory. He also gave name to the S-potential, which was the first experimental evidence that opponency existed in the visual system. Born in Finland, he moved to Sweden in 1948, and from 1955 until his death, he worked as a researcher in Venezuela. (en) Gunnar Nils Toivo Svaetichin, född 13 januari 1915 i Karis, död 23 mars 1981 i Caracas, var en finländsk läkare. Svaetichin blev medicine licentiat från Helsingfors universitet 1944 och medicine doktor från Karolinska institutet i Stockholm 1951. Han tillhörde Ragnar Granits forskargrupp och flyttade 1948 över till Sverige. Han verkade från 1955 till sin död som forskare i neurofysiologi vid Instituto Venezolano de Neurologia e Investigaciones Cerebrales i Caracas. En viktig insats av honom var utvecklandet av en mikroelektrod för registrering av impulser från individuella neuroner. Under andra världskriget uppfann han enkla pappskenor för immobilisering av skadade lemmar, speciellt för transport av sårade. (sv)
schema:sameAs	Gunnar Svaetichin
prov:wasDerivedFrom	wikipedia-en:Gunnar_Svaetichin?oldid=1050142913&ns=0
page length (characters) of wiki page	7433 (xsd:nonNegativeInteger)

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