On the mechanism underlying transitory luminance contrast.

• Project/Area Number: 19730462
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Experimental psychology
• Research Institution: Kyoto Institute of Technology
• Principal Investigator: V・T・G Jakobus Kyoto Institute of Technology, 工芸科学研究科, 准教授 (30362586)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥570,000); Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,300,000)
• Keywords: 明暗コントラスト / 錯視 / 計算モデル / 明るさ知覚

Research Abstract

Transitory luminance contrast induction (TLCI) is a perceptual phenomenon where regions of subjective high contrast appears in black and white line stimuli. The underlying cause for TLCI remains unknown. In this research project, the physical stimulus parameters for evoking TLCI are experimentally verified, and used to program various models to simulate TLCI. A model of retinal cone dynamics most closely succeeds in simulating TLCI. This led the research towards a theoretical understanding of TLCI : the duration of stimulus changes predicts TLCI and explains why slowly responding cones cause TLCI. TLCI occurs in stimulus regions that are effectively stationary relative to the retina.

Research Products

• [Journal Article] Perceptual disruption and composure in Bridget Riley's (2010)
  • Author(s): Gert J. van Tonder
  • Journal Title: Fall, Leonardo (MIT Press) vol.43,No.3(in press) Pages: 283-288
• [Journal Article] Perceptual disruption and composure in Bridget Riley's Fall. (2010)
  • Author(s): Gert J.van Tonder
  • Journal Title: Leonardo (MIT Press) 43:3 Pages: 283-288
  • Peer Reviewed
• [Presentation] Op art and the genius of the eye (招待講演) (2010)
  • Author(s): Gert J.van Tonder
  • Organizer: 特別招待講演
  • Place of Presentation: シンガポール国立大学(シンガポール)
  • Year and Date: 2010-03-19
• [Presentation] The retina: more than meets the eye (2010)
  • Author(s): Gert J. van Tonder
  • Organizer: Proceedings of The 3rd International Workshop on Kansei
  • Place of Presentation: Kyushu University, Fukuoka
  • Year and Date: 2010-02-22
• [Presentation] The retina : more than meets the eye (招待講演) (2010)
  • Author(s): Gert J.van Tonder
  • Organizer: The 3^<rd> International Workshop on Kansei
  • Place of Presentation: 九州大学、福岡
  • Year and Date: 2010-02-22
• [Presentation] Op art and the genius of the eye (招待講演) (2009)
  • Author(s): Gert J.van Tonder
  • Organizer: Aesthetics and Science : The genius of the Artist
  • Place of Presentation: トレント近代美術館(トレント、イタリア)
  • Year and Date: 2009-11-06
• [Presentation] Very early origins of visual qualities (2009)
  • Author(s): Gert J. van Tonder
  • Organizer: Proceedings of the ESF International Workshop on Qualities in Perception Science
  • Place of Presentation: University of Trento, Italy
  • Year and Date: 2009-11-02
• [Presentation] Very early origins of visual qualities (2009)
  • Author(s): Gert J.van Tonder
  • Organizer: ESF International Workshop on Qualities in Perception Science
  • Place of Presentation: トレント大学(イタリア)
  • Year and Date: 2009-11-02
• [Presentation] Feature binding in swarming dot patterns (2008)
  • Author(s): Gert J. van Tonder
  • Organizer: Proceedings of The European Conference on Visual Perception
  • Place of Presentation: Utrecht, The Netherlands
  • Year and Date: 2008-08-25
• [Presentation] Feature binding in swarming dot patterns (2008)
  • Author(s): Gert J. van Tonder
  • Organizer: The European Conference on Visual Perception
  • Place of Presentation: Utrecht, the Netherlands
  • Year and Date: 2008-08-25
• [Presentation] A second order feedback model of visual transduction in cones of the monkey Macaca fascicularis (2007)
  • Author(s): Gert J. van Tonder, Yoshio Ohtani
  • Organizer: Proceedings of The 23rd meeting of the International Society of Psychophysics
  • Place of Presentation: Tokyo
  • Year and Date: 2007-10-22
• [Presentation] Motion blur in the Op artist's palette (2007)
  • Author(s): Gert J. van Tonder
  • Organizer: Proceedings of The European Conference on Visual Perception
  • Place of Presentation: Arezzo, Italy
  • Year and Date: 2007-08-30
• [Presentation] A second order feedback model of visual transduction in cones of the monkey Macaca fascicularis (2007)
  • Author(s): Gert, J.van, Tonder・Yoshio, Ohtani
  • Organizer: The 23rd meeting of the International Society of Psychophysics
  • Place of Presentation: 東京都
• [Presentation] Motion blur in the Op artist's palette (2007)
  • Author(s): Gert, J.van, Tonder
  • Organizer: The European Conference on Visual Perception
  • Place of Presentation: Arezzo, Italy
• [Book] Visual informing through an imperfect retina in Becoming Information (Eds. L. Albertazzi, G.J. van Tonder and D. Viswanath) (2010)
  • Author(s): Gert J. van Tonder
  • Total Pages: 20
  • Publisher: MIT Press(in press)
• [Book] Becoming Information(Ed. L. Albertazzi), MIT Press
  • Author(s): Gert J. van Tonder
  • Total Pages: 28
  • Publisher: Visual informing through an imperfect retina(in press)