Johannes von Kries, Date of Birth, Place of Birth, Date of Death
TweetJohannes von Kries
German physiological psychologist
Date of Birth: 
Place of Birth: Rogóźno, Kuyavian-Pomeranian Voivodeship, Kuyavian-Pomeranian Voivodeship, Poland
About Johannes von Kries
- Johannes Adolf von Kries (6 October 1853, Roggenhausen – 30 December 1928, Freiburg im Breisgau) was a German physiological psychologist who formulated the modern “duplicity” or “duplexity” theory of vision mediated by rod cells at low light levels and three types of cone cells at higher light levels.
- He made important contributions in the field of haemodynamics.
- In addition, von Kries was a significant theorist of the foundations of probability.
Read more at Wikipedia
See Also
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