Johannes von Kries

Johannes Adolf von Kries (6 October 1853 – 30 December 1928) 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] In addition, von Kries was a significant theorist of the foundations of probability.

When von Kries was at Freiburg, he was called to succeed Professor Emil Du Bois-Reymond as chair of physiology at the University of Berlin, but he declined.[4]

Von Kries has been called Helmholtz's “greatest German disciple”.[5]

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 0874517427. http://books.google.com/?id=EBmZrXKmARQC&pg=PA299&dq=%22Johannes+von+Kries%22+psychologist. 
  2. ^ John Wallace Baird (1905). The Color Sensitivity of the Peripheral Retina. Carnegie Institution of Washington. http://books.google.com/?id=59sjuJRBlZsC&pg=PA24&dq=%22Johannes+von+Kries%22#PPA69,M1. 
  3. ^ Jon E. Roeckelein (1998). Dictionary of Theories, Laws, and Concepts in Psychology. Greenwood Press. ISBN 0313304602. http://books.google.com/?id=6mu3DLkyGfUC&pg=PA472&dq=%22Johannes+von+Kries%22. 
  4. ^ 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). http://books.google.com/?id=zBUuAAAAMAAJ&pg=PA481&dq=%22Johannes+von+Kries%22. 
  5. ^ David Cahan (1993). Hermann Von Helmholtz and the Foundations of Nineteenth-Century Science. University of California Press. ISBN 0520083342. http://books.google.com/?id=Gx-ZGgeF2EwC&pg=PA198&dq=%22Johannes+von+Kries%22+psychologist.