Stephen Polyak (born Stjepan Lucian Poljak; December 13, 1889 – March 9, 1955)^[1] was an American neuroanatomist and neurologist considered to be one of the most prominent neuroanatomists of the 20th century.^[2][3][4]

Key Information

Stephen Polyak
Born	Stjepan Lucian Poljak December 13, 1889 Đurđevac, Austria-Hungary (present-day Croatia)
Died	March 9, 1955(1955-03-09) (aged 65) Chicago, Illinois, U.S.
Alma mater	University of Zagreb University of Graz Odessa University
Known for	work on retina and visual system
Scientific career
Fields	Anatomy, neurology
Institutions	University Hospital Centre Zagreb University of California, Berkeley University of Chicago
Academic advisors	Santiago Ramón y Cajal Karl Lashley Grafton Elliot Smith
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Polyak studied the functional structure of the organs of sight and hearing, explaining the function of the retina and the cochlea, and visual and auditory pathways and centers. He also gave a new interpretation of the basic visual processes.^[2][5]

1. ^ Stephen Polyak biography, researchgate.net; accessed February 5, 2017.
2. ^ ^{a b} Granit, Ragnar (1955). "The Grand Theme of Stephen Polyak". Science. 122 (3158): 64. Bibcode:1955Sci...122...64G. doi:10.1126/science.122.3158.64. PMID 14385820.
3. ^ Klüver, Heinrich (1955). "Dr. Stephen Polyak, 1889–1955". Journal of Neurophysiology. 68 (4): 675–678. JSTOR 1418804. PMID 13275620.
4. ^ "Stephen Polyak Obituary". The British Journal of Ophthalmology. 39 (5): 320. 1955. doi:10.1136/bjo.39.5.320-a.
5. ^ Triarhou, Lazaros C. (2007). "Stjepan Poljak (1889–1955)". Journal of Neurology. 254 (11): 1619–20. doi:10.1007/s00415-007-0735-0. PMID 18026892. S2CID 27226724.

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