Benham disk

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An example of a Benham disc
animation
Benham's disc (animated) .gif

The Benham disk is an optical illusion named after the English toy maker Charles Benham . When turning the black and white disc, arcs of colors become visible. Charles Benham sold the disc in 1894 under the name Artificial Spectrum Top . Such color effects were described as early as 1838 by Gustav Theodor Fechner and Hermann von Helmholtz .

literature

  • Charles E. Benham: The Artificial Spectrum Top . In: Nature . No. 51 , 1894, p. 113-114; 200 ( p. 113  - Internet Archive / p. 200  - Internet Archive ).
  • Garrett T. Kenyon, Dan Hill, James Theiler, John S. George, David W. Marshak: A theory of the Benham Top based on center-surround interactions in the parvocellular pathway . In: Neural networks . tape 17 , no. 5-6 , 2004, pp. 773-786 , doi : 10.1016 / j.neunet.2004.05.005 , PMID 15288897 , PMC 3359843 (free full text) - (English).
  • Hiroki C. Tanabe, Tomoko Sakai, Yusuke Morito, Takanori Kochiyama, Norihiro Sadato: Neural correlates and effective connectivity of subjective colors during the Benham's top illusion: a functional MRI study . In: Cerebral Cortex . tape 21 , no. 1 , 2011, p. 124–133 , doi : 10.1093 / cercor / bhq066 , PMID 20413448 (English, free full text [accessed on November 16, 2013]).

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