Ragnar Arthur GranitDied 12 Mar 1991 at age 90 (born 30 Oct 1900).Finnish-Swedish physiologist who shared (with George Wald and Haldan Hartline) the 1967 Nobel Prize for Physiology or Medicine for his analysis of the internal electrical changes that take place when the eye is exposed to light. He worked on individual nerve cells of the retina and was the first to show that single nerve fibres could distinguish between different wavelengths of light. His bioelectric studies of vision were possible using the electric measurement method of professor Edgar D. Adrian of Oxford University, who had made the first measurement of the electric impulse in a single nerve fiber. Granit also conducted studies also on the function of muscle spindle, motoneuron, spinal cord and brain. |
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