Johannes von Kries

Johannes Adolf von Kries (6 October 1853, Roggenhausen – 30 December 1928, Freiburg im Breisgau) was a German physiological psychologist[1] 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.[2][3] He made important contributions in the field of haemodynamics.[4] In addition, von Kries was a significant theorist of the foundations of probability.

Biography

When von Kries was at Freiburg (18801924),[5] he was called to succeed Professor Emil Du Bois-Reymond as chair of physiology at the University of Berlin, but he declined.[6]

Von Kries has been called Helmholtz's "greatest German disciple".[7]

Works

See also

References

  1. Charles A. Riley II (1996). Color Codes: Modern Theories of Color in Philosophy, Painting and Architecture, Literature, Music, and Psychology. Univ. Press of New England, Hanover NH. ISBN 0-87451-742-7.
  2. John Wallace Baird (1905). The Color Sensitivity of the Peripheral Retina. Carnegie Institution of Washington.
  3. Jon E. Roeckelein (1998). Dictionary of Theories, Laws, and Concepts in Psychology. Greenwood Press. ISBN 0-313-30460-2.
  4. AS Tijsseling, A Anderson (2007). "Johannes von Kries and the history of water hammer". Journal of Hydraulic Engineering. 133 (1): 1–8.
  5. Kries, Johannes von at Deutsche Biographie
  6. American Society of Naturalists, Essex Institute (May 1897). "Scientific News". The American Naturalist. Published for the American Society of Naturalists by the University of Chicago Press: 481. doi:10.1086/276633.
  7. David Cahan (1993). Hermann Von Helmholtz and the Foundations of Nineteenth-Century Science. University of California Press. p. 198. ISBN 0-520-08334-2.
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