http://www.ritsumei.ac.jp/%7Eakitaoka/index-e.html

AKiyoshi KITAOKA

Born in 1961. 1991: Ph.D., Institute of Psychology, University of Tsukuba in 1991. 1991-2001: Staff Scientist, Tokyo Metropolitan Institute for Neuroscience. 2001-2006: Associate Professor, Department of Psychology, College of Letters, Ritsumeikan University. 2006-present: Professor, Department of Psychology, College of Letters, Ritsumeikan University.2006: The 9th L'ORÉAL Art and Science of Color Prize, the Gold Prize winner

Is only cyan (greenish blue)

"Packed illusory red rings"