The role of the figure-ground segregation process on the visual consciousness -eye movement response study

• Project/Area Number: 19700289
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Neuroscience in general
• Research Institution: The Institute of Physical and Chemical Research (2008); Kyoto University (2007)
• Principal Investigator: HAYASHI Ryusuke The Institute of Physical and Chemical Research, 脳統合機能研究チーム, 研究員 (80444470)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥2,840,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥240,000); Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2007: ¥1,800,000 (Direct Cost: ¥1,800,000)
• Keywords: 認知神経科学 / 視運動性眼球運動 / 眼球運動 / 心理物理 / 運動視 / 知覚反転 / 実験系心理学 / 認知科学 / 神経科学 / 感性情報学

Research Abstract

意識的な視知覚のメカニズムを解明するには、知覚交代現象を観察中の被験者がどの様な知覚状態にあるかを知る必要がある。本研究では、被験者の知覚状態を、反射的に生じる眼球運動を観察することで客観的に推定する実験技法の確立を目指した。研究期間中、反対方向に動く二つの運動視信号が同時に提示されたときに生じる、運動視方向知覚の変化と、それに随伴する眼球運動の変化について詳細に調べる4種類の実験を行った。本研究により、運動視と眼球運動応答の関わりについて解明が進み、眼球運動応答を利用した知覚状態の推定を達成した。本研究成果は国際学会や国際論文誌へ発表することができた。

Research Products

• [Journal Article] Transition from monocular motion perception to dichoptic motion perception as a function of the stimulus duration (2008)
  • Author(s): R. Hayashi, K. Kawano
  • Journal Title: Experimental Brain Research vol.190, no.4 Pages: 499-502
  • Peer Reviewed
• [Journal Article] Transition from monocular motion perception to dichoptic motion perception as a function of the stimulus duration (2008)
  • Author(s): R. Hayashi, et al.
  • Journal Title: Experimen tal Brain Research 190 Pages: 499-502
  • Peer Reviewed
• [Journal Article] Eye movements in response to dichoptic motion: evidence for a parallel-hierarchical structure of visual motion processing in primates (2008)
  • Author(s): R Hayaashi, K Miura, H Tabata, K Kawano
  • Journal Title: Journal of Neurophysiology (In press)
  • Peer Reviewed
• [Journal Article] A method for generating "purely first-order" dichoptic motion stimulus (2007)
  • Author(s): R Hayashi, S Nishida, A Tolias, N Logothetis
  • Journal Title: Journal of Vision 7 Pages: 1-10
  • Peer Reviewed
• [Presentation] How motion signals are integrated across frequencies (2009)
  • Author(s): R. Hayashi
  • Organizer: ESF-JSPS Frontier Science Conference Series for Young Researchers, "Social Cogriitive Neuroscience"
  • Place of Presentation: Acquafredda di Maratea, Italy
  • Year and Date: 2009-03-03
• [Presentation] How motion signals are integrated across frequencies (2009)
  • Author(s): R. Hayashi
  • Organizer: ESF-JSPS Frontier Science Conference Series for Young Researchers, "Social Cognitive Neuroscience"
  • Place of Presentation: Maratea, Italy
• [Presentation] 視運動性眼振を指標とした知覚反転のタイミング推定 (2009)
  • Author(s): 林隆介, 谷藤学
  • Organizer: 脳と心のメカニズム第9回冬のワークショップ
  • Place of Presentation: ルスツ
• [Presentation] Dominance of low spatial frequency in motion perception revealed by a reversed correlation technique (2008)
  • Author(s): R. Hayashi, et al.
  • Organizer: Neuroscience 2008(the 38th Annual Meeting of the Society for Neuroscience)
  • Place of Presentation: Washington DC, USA
  • Year and Date: 2008-11-18
• [Presentation] コントラスト反転マルチ云リット視で観察される奇妙な運動視知覚 : 眼球運動を手がかりに (2008)
  • Author(s): 林隆介, et al.
  • Organizer: 第31回日本神経科学大会
  • Place of Presentation: 東京
  • Year and Date: 2008-07-10
• [Presentation] Paradoxical motion perception observed through contrast-altemating multiple -slit-viewing (2008)
  • Author(s): R. Hayashi, et al.
  • Organizer: Vision Sciences Society 2008 Annual Meeting
  • Place of Presentation: Naples, FL, USA
  • Year and Date: 2008-05-10
• [Presentation] コントラスト反転マルチスリット視における運動知覚 (2008)
  • Author(s): 林 隆介、河野 憲二
  • Organizer: 日本視覚学会 2008年冬季大会
  • Place of Presentation: 東京
  • Year and Date: 2008-01-23
• [Presentation] Dominance of low spatial frequency in motion perception revealed by a reversed correlation technique (2008)
  • Author(s): R. Hayashi, K. Kawano
  • Organizer: Neuroscience 2008 (the 38^<th> Annual Meeting of the Society for Neuroscience)
  • Place of Presentation: Washington DC, USA
• [Presentation] Paradoxical motion perception observed through contrast-alternating multiple-slit-viewing (2008)
  • Author(s): R. Hayashi, K. Kawano
  • Organizer: VSS (Vision Sciences Society) 2008 Annual Meeting, Journal of Vision, vol.8, no.6, p.129a
  • Place of Presentation: Naples, USA
• [Presentation] 眼球運動を手がかりとした図地反転タイミングの推定 (2008)
  • Author(s): 林隆介, 谷藤学
  • Organizer: 日本視覚学会2008年夏季大会
  • Place of Presentation: 東京
• [Presentation] コントラスト反転マルチスリット視で観察される奇妙な運動視知覚 : 眼球運動を手がかりに (2008)
  • Author(s): 林隆介, 河野憲二
  • Organizer: 第31回日本神経科学大会
  • Place of Presentation: 東京
• [Presentation] Two cortical pathways in visual motion processing revealed by occular motor responses (2007)
  • Author(s): R Hayashi, K Miura, H Tabata, K Kawano
  • Organizer: Neuroscience 2007 Annual Meeting
  • Place of Presentation: San Diego, USA
  • Year and Date: 2007-11-06
• [Presentation] 単眼性の運動視成分がない視覚刺激によって誘発される追従眼球運動 (2007)
  • Author(s): 林 隆介、三浦 健一郎、田端 宏充、河野 憲二
  • Organizer: Neuro 2007
  • Place of Presentation: 横浜
  • Year and Date: 2007-09-10
• [Presentation] Temporal property difference between monocular and binocular motion processing (2007)
  • Author(s): R Hayashi, K Miura, H Tabata, K Kawano
  • Organizer: Vision Sciences Society Annual Meeting 2007
  • Place of Presentation: Sarasota, USA
  • Year and Date: 2007-05-14