Human visual processing for the high-speed temporal information

• Project/Area Number: 25870230
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Experimental psychology; Cognitive science
• Research Institution: The University of Electro-Communications
• Principal Investigator: Nakajima Yutaka 電気通信大学, その他の研究科, 研究員 (90513036)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 高速情報処理 / 高速プロジェクタ / フリッカ / 運動知覚 / 高速時間処理 / フリッカ知覚

Outline of Final Research Achievements

The visual processing for the high-speed temporal information was investigated by using the high-speed DLP projector (maximal refresh rate: 5000 Hz). The results showed that the temporal information above critical fusion frequency (CFF: 60 Hz) could induce the transient twinkle perception and the transient pattern perception. In addition, the temporal limit for perception of motion smoothness would be higher than the temporal frequency above CFF.

Research Products

• [Journal Article] 視覚心理実験に対する高速プロジェクタの適用 (2016)
  • Author(s): 中嶋豊，阪口豊
  • Journal Title: 日本バーチャルリアリティ学会論文誌 Volume: 21 Pages: 7-14
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Transient twinkle perception is induced by sequential presentation of stimuli that flicker at frequencies above the critical fusion frequency (2015)
  • Author(s): Nakajima, Y., Sakaguchi, Y.
  • Journal Title: Attention, Perception, & Psychophysics Volume: 77 Issue: 8 Pages: 2711-2727
  • DOI: 10.3758/s13414-015-0962-x
  • Peer Reviewed
• [Presentation] 連続運動としての知覚が生じる時間限界について (2016)
  • Author(s): 中嶋豊，阪口豊
  • Organizer: 第49回知覚コロキウム
  • Place of Presentation: ホテルニュー水戸屋（宮城県仙台市）
  • Year and Date: 2016-03-15
• [Presentation] Perception of transient pattern at the transition between high-speed flickering stimuli (2015)
  • Author(s): Yutaka Nakajima, Yutaka Sakaguchi
  • Organizer: Vision Science Society 15th annual meeting
  • Place of Presentation: TradeWinds Island Resorts （St. Pete Beach, Florida, USA）
  • Year and Date: 2015-05-15 – 2015-05-20
• [Presentation] Perception of transient pattern at the transition between high-speed flickering stimuli (2015)
  • Author(s): Nakajima, Y., Sakaguchi, Y.
  • Organizer: Vision Science Society 15th annual meeting
  • Place of Presentation: St. Pete Beach, FL （USA）
  • Year and Date: 2015-05-15
  • Int'l Joint Research
• [Presentation] Pattern perception brought by a transient switch of high-speed flicker stimuli (2015)
  • Author(s): Yutaka Nakajima, Yutaka Sakaguchi
  • Organizer: 第48回知覚コロキウム
  • Place of Presentation: かんぽの宿 日田（大分県）
  • Year and Date: 2015-03-06 – 2015-03-08
• [Presentation] 高速フリッカ刺激の連続提示により生じるパタン知覚 (2015)
  • Author(s): 中嶋豊，阪口豊
  • Organizer: 日本視覚学会冬季大会
  • Place of Presentation: 工学院大学（東京都）
  • Year and Date: 2015-01-21 – 2015-01-23
• [Presentation] Abrupt transition between an above-CFF flicker and a stationary stimulus induces twinkle perception: Evidence for high-speed visual mechanism for detecting luminance change. (2013)
  • Author(s): Yutaka Nakajima and Yutaka Sakaguchi
  • Organizer: Vision Science Society 13th annual meeting
  • Place of Presentation: Naples, FL, USA