Johannes von Kries German Psychologist
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Johannes von Kries is a member of the following lists: 1928 deaths, Recipients of the Pour le Mérite (civil class) and 1853 births.
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Details
| First Name |
Johannes
|
| Middle Name |
Von
|
| Last Name |
Kries
|
| Birthday |
6th October, 1853
|
| Died |
30th December, 1928
|
| Zodiac Sign |
Libra
|
| Nationality |
German
|
| Occupation |
Psychologist
|
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.
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