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Granit, Ragnar Arthur |
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Granit, Ragnar Arthur(born Oct. 30, 1900, Helsinki, Fin.—died March 12, 1991, Stockholm, Swed.) Finnish-born Swedish physiologist. His “dominator-modulator” theory states that in addition to the retina's three kinds of cone cells, which respond to different colours, certain optic-nerve fibres (dominators) respond either to the whole spectrum or to specific colours (modulators). He also proved that light inhibits as well as stimulates optic-nerve impulses; other research helped determine the nerve pathways and processes by which receptors in muscles coordinate muscle action. He shared a 1967 Nobel Prize with George Wald and Haldan Keffer Hartline. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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