Structure of internal clock and its distortion: research on hierarchy in processing of time perception

• Project/Area Number: 24730623
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Experimental psychology
• Research Institution: Kyushu University
• Principal Investigator: Tomimatsu Erika 九州大学, 芸術工学研究院, 特別研究員 (20584668)
• Project Period (FY): 2012-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 時間知覚 / 時間錯覚 / 充実時間錯覚 / 時間拡張錯覚 / 運動知覚 / 認知的運動 / 充実時間 / 空虚時間 / 運動錯視 / ダイナミックランダムドット / 視聴覚統合 / 実験系心理学

Outline of Final Research Achievements

Perceived lengths of very short durations were measured to investigate whether the perceived lengths were distorted by properties of presented stimuli. The filled duration illusion for time interval shorter than 1 second, which has been investigated mainly in audition, also occurred in vision when randomdot figures were used for visual stimuli. The time dilation occurred when dynamic randomdots were used as stimuli although their motion speed and direction are indeterminant. Perceived duration is also affected by implied motion in pictograms made of simple components and lengthened by an increase of the implied speed in the pictograms.

Research Products

• [Int'l Joint Research] Universite Laval(カナダ)
• [Int'l Joint Research] National University of Ireland, Galway(アイルランド)
• [Int'l Joint Research] National University of Ireland, Galway(アイルランド)
• [Journal Article] Perceived empty duration between sounds of different lengths: Possible relation with repetition and rhythmic grouping (2016)
  • Author(s): Kuroda, T., Tomimatsu, E., Grondin, S., & Miyazaki, M.
  • Journal Title: Attention, Perception, & Psychophysics Volume: 78 Issue: 8 Pages: 2678-2689
  • DOI: 10.3758/s13414-016-1172-x
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Directional bias of illusory stream caused by relative motion adaptation. (2016)
  • Author(s): Tomimatsu, E., & Ito, H.
  • Journal Title: Vision research Volume: 124 Pages: 34-43
  • DOI: 10.1016/j.visres.2016.04.010
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Directional bias of illusory stream caused by relative motion adaptation (2016)
  • Author(s): Erika Tomimatsu and Hiroyuki Ito
  • Journal Title: Vision Research
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] The occurrence of the filled duration illusion : A comparison of the method of adjustment with the method of maenitude estimation (2014)
  • Author(s): Hasuo, E., Nakajima, Y. Tomimatsu, E., Grondin, S., Ueda, K.
  • Journal Title: Acta Psychologica Volume: 147 Pages: 111-121
  • DOI: 10.1016/j.actpsy.2013.10.003
  • Peer Reviewed
• [Presentation] Change, not motion, determines subjective duration (2016)
  • Author(s): Erika Tomimatsu, Yoshitaka Nakajima, Mark A. Elliott and Hiroyuki Ito
  • Organizer: The 31st International Congress of Psychology (ICP2016)
  • Place of Presentation: PACIFICO Yokohama (Yokohama, Japan)
  • Year and Date: 2016-07-24
  • Int'l Joint Research
• [Presentation] Change, not motion, determines subjective duration (2016)
  • Author(s): Tomimatsu, E., Nakajima, Y., Elliott, M. A., & Ito, H.
  • Organizer: International Congress of Psychology (ICP2016)
  • Place of Presentation: PACIFICO Yokohama (Yokohama, Japan)
  • Int'l Joint Research
• [Presentation] Effects of repetition on the isochronous perception of sounds at different lengths (2016)
  • Author(s): Kuroda, T., Tomimatsu, E., Grondin, S., & Miyazaki, M.
  • Organizer: International Congress of Psychology (ICP2016)
  • Place of Presentation: PACIFICO Yokohama (Yokohama, Japan)
  • Int'l Joint Research
• [Presentation] Perceptual contrast between two short adjacent time intervals marked by clicks (2016)
  • Author(s): Nakajima, Y., Matsuda, M., Tomimatsu, E., & Hasuo, E.
  • Organizer: International Congress of Psychology (ICP2016)
  • Place of Presentation: PACIFICO Yokohama (Yokohama, Japan)
  • Int'l Joint Research
• [Presentation] Effect of Body Posture on the Interpretation of Cast Shadows (2016)
  • Author(s): Koizumi, T., Ito, H., Sunaga, S., & Tomimatsu, E.
  • Organizer: International Congress of Psychology (ICP2016)
  • Place of Presentation: PACIFICO Yokohama (Yokohama, Japan)
  • Int'l Joint Research
• [Presentation] Effect of implied speed on perceived presentation duration (2015)
  • Author(s): Erika Tomimatsu and Hiroyuki Ito
  • Organizer: The 11th Asia-Pacific Conference on Vision (APCV2015)
  • Place of Presentation: Nanyan Technological University (Singapore)
  • Year and Date: 2015-07-12
  • Int'l Joint Research
• [Presentation] Measurements of subjective length of filled duration determined by dynamic random dots (2014)
  • Author(s): Erika Tomimatsu, Yoshitaka Nakajima, Hiroyuki Ito
  • Organizer: Asia Pacific Conference on Vision
  • Place of Presentation: Takamatsu, Japan
  • Year and Date: 2014-07-20
• [Presentation] 視覚における 1 秒以下の空虚時間と充実時間の主観的時間長
  • Author(s): 富松江梨佳，中島祥好，伊藤裕之，Mark A. Elliott
  • Organizer: 日本視覚学会2013年冬季大会
  • Place of Presentation: 工学院大学アーバンティックホール（東京）