Scintillating lustre induced by radial fins

Kohske Takahashi*, Haruaki Fukuda, Katsumi Watanabe, Kazuhiro Ueda

*Corresponding author for this work

Research output: Contribution to journalComment/debatepeer-review

1 Citation (Scopus)


Radial lines of Ehrenstein patterns induce illusory scintillating lustre in gray disks inserted into the central gaps (scintillating-lustre effect). We report a novel variant of this illusion by replacing the radial lines with white and black radial fins. Both white and gray disks inserted into the central gaps were perceived as scintillating, if the ratio of the black/white fin width were balanced (ie, close to 1.0). Thus, the grayness of the central disk is not a prerequisite for the scintillation. However, the scintillation was drastically reduced when the ratio was imbalanced. Furthermore, the optimal ratio depended on the color of the center disks.

Original languageEnglish
Pages (from-to)101-103
Number of pages3
Issue number2
Publication statusPublished - 2012
Externally publishedYes


  • Ehrenstein pattern.
  • Luminance contrast
  • Scintilattion
  • Scintillating-lustre effect
  • Visual illusion

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Ophthalmology
  • Sensory Systems
  • Artificial Intelligence


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