Underlying neuronal mechanisms to integrate stimulus features embedded within contour stimuli in the early stages of the visual cortex.

• Project/Area Number: 18300111
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Neuroscience in general
• Research Institution: National Institute for Physiological Sciences
• Principal Investigator: ITO Minami National Institute for Physiological Sciences, 生体情報研究系, 准教授 (20311194)
• Co-Investigator(Kenkyū-buntansha): 小松 英彦 生理学研究所, 生体情報研究系, 教授 (00153669)
• Co-Investigator(Renkei-kenkyūsha): KOMATSU Hidehiko 生理学研究所, 生体情報研究系, 教授 (00153669)
• Project Period (FY): 2006 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥16,360,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥2,460,000); Fiscal Year 2009: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2008: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2007: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2006: ¥5,700,000 (Direct Cost: ¥5,700,000)
• Keywords: 神経情報処理 / 神経科学 / 脳・神経 / 視知覚 / 折れ曲がり / 大脳皮質視覚野

Research Abstract

We examined the response selectivity to angles embedded larger than the size of classical receptive fields in primate V2 neurons under anesthesia. The study indicated that single side end-stop neurons represent one half-line component of the optimal angle and another component acted as a modulator to specify an optimal angle. Partial similarity of the angle selectivity indicated that V2 neurons inherited the selectivity of V1 neurons and produced more elaborate angle selectivity.

Research Products

• [Journal Article] Mechanisms underlying the representation of angles embedded within contour stimuli in area V2 of macaque monkeys. (2011)
  • Author(s): Ito M Goda N
  • Journal Title: European Journal of Neuroscience 33 Pages: 130-142
  • Peer Reviewed
• [Journal Article] Distribution of color-selective activity in the monkey inferior temporal cortex revealed by functional magnetic resonance imaging. (2009)
  • Author(s): Hrada T, Goda N, Ogawa T, Ito M, Toyoda H, Sadato N Komatsu H
  • Journal Title: European Journal of Neurosciences 30 Pages: 1960-1970
  • Peer Reviewed
• [Journal Article] Distribution of color-selective activity in the monkey inferior temporal cortex revealed by functional magnetic resonance imaging (2009)
  • Author(s): Hrada T
  • Journal Title: European Journal of Neuroscience 30 Pages: 1960-1970
  • Peer Reviewed
• [Journal Article] Effects of task demands on the responses of color-selective neurons in the inferior temporal cortex. (2007)
  • Author(s): Koida K Komatsu H
  • Journal Title: Nature Neuroscience 10 Pages: 108-116
  • Peer Reviewed
• [Journal Article] Effects of task demands on the responses of color-selective neurons in the inferior temporal cortex. (2007)
  • Author(s): Koida K
  • Journal Title: Nature Neuroscience 10 Pages: 108-116
• [Journal Article] The neural mechanisms of perceptual filling-in. (2006)
  • Author(s): Komatsu H
  • Journal Title: Nature Review Neuroscience 7 Pages: 220-231
  • Peer Reviewed
• [Journal Article] Neuronal dynamics of bottom-up and top-down processes in area V4 of macaque monkeys performing a visual search. (2006)
  • Author(s): Ogawa T Komatsu H
  • Journal Title: Experimental Brain Research 173 Pages: 1-13
  • Peer Reviewed
• [Journal Article] Air-driven eye shutter system for vision experiments using awake behaving animals. (2006)
  • Author(s): Matsumoto M, Togawa M Komatsu H
  • Journal Title: Journal of Neuroscience Methods 153 Pages: 130-134
  • Peer Reviewed
• [Journal Article] Neuronal dynamics of bottom-up and top-down precesses in area V4 of macaque monkeys performing a visual search. (2006)
  • Author(s): Ogawa t
  • Journal Title: Experimental Brain Research 173 Pages: 1-13
• [Journal Article] Air-driven eye shutter system for vision experiments using awake behaving animals. (2006)
  • Author(s): Matsumoto M
  • Journal Title: Journal of Neuroscience Methods 153 Pages: 130-134
• [Presentation] Response Properties to Combination of Two Spectral Components in Cat A17, 18 and Monkey V2 neurons. (2010)
  • Author(s): 中園貴之
  • Organizer: 40th Society for Neuroscience Meeting
  • Place of Presentation: San Diego, U.S.A
  • Year and Date: 2010-11-13
• [Presentation] 初期視覚系における連続した輪郭線中の折れ曲がり検出 (2010)
  • Author(s): 伊藤南
  • Organizer: 第33回日本神経科学大会
  • Place of Presentation: 神戸
  • Year and Date: 2010-09-04
• [Presentation] A17, 18, V2野細胞の二つの空間周波数の組み合わせに対する応答特性 (2010)
  • Author(s): 中園貴之
  • Organizer: 第33回日本神経科学大会
  • Place of Presentation: 神戸
  • Year and Date: 2010-09-02
• [Presentation] 輪郭線表現における第一次視覚野の役割:モデル解析 (2009)
  • Author(s): 伊藤南
  • Organizer: 第13回視覚科学フォーラム研究会
  • Place of Presentation: 鹿児島市
  • Year and Date: 2009-09-02
• [Presentation] 輪郭線表現における第一次視覚野の役割:モデル解析 (2009)
  • Author(s): 伊藤南
  • Organizer: 第13回視覚科学フォーラム研究会
  • Place of Presentation: 鹿児島県、鹿児島市鹿児島大学稲森会館
  • Year and Date: 2009-09-02
• [Presentation] Transform domain reverse correlation for investigation of curvature selectivity of visual neurons. (2008)
  • Author(s): Arai T
  • Organizer: 37th Society for Neuroscience Meeting
  • Place of Presentation: Washington DC, U.S.A
  • Year and Date: 2008-11-17
• [Presentation] Transform domain reverse correlation for investigation of curvature selectivity of visual neurons (2008)
  • Author(s): Arai T, Ito M, Asakawa K, Okamoto R, Ohzawa I
  • Organizer: 37th Society for Neuroscience Meeting
  • Place of Presentation: Washington DC, U.S.A.
  • Year and Date: 2008-11-17
• [Presentation] Size dependency of the angle representation in primate visual area V2. (2008)
  • Author(s): 伊藤南
  • Organizer: 37th Society for Neuroscience Meeting
  • Place of Presentation: Washington DC, U.S.A
  • Year and Date: 2008-11-16
• [Presentation] Size dependency of the angle representation in primate visual area V2 (2008)
  • Author(s): Ito M and Asakawa K
  • Organizer: 37th Society for Neuroscience Meeting
  • Place of Presentation: Washington DC, U.S.A.
  • Year and Date: 2008-11-16
• [Presentation] Size dependency of the angle representation in primate visual area V2. (2008)
  • Author(s): 伊藤南
  • Organizer: 37th Society for Neuroscience Meeting
  • Place of Presentation: Washington DC, U.S.A.
  • Year and Date: 2008-11-16
• [Presentation] サル二次視覚野における輪郭線の折れ曲がり表出-線形加算モデルによる刺激選択性形成メカニズムの検討 (2008)
  • Author(s): 伊藤南
  • Organizer: 第12回視覚科学フォーラム研究会
  • Place of Presentation: 大阪
  • Year and Date: 2008-08-29
• [Presentation] サル二次視覚野における輪郭線の折れ曲がり表出-線形加算モデルによる刺激選択性形成メカニズムの検討 (2008)
  • Author(s): 伊藤南
  • Organizer: 第12回視覚科学フォーラム研究会
  • Place of Presentation: 豊中市、大阪
  • Year and Date: 2008-08-29
• [Presentation] Curvature Selectivity of Neurons in the Visual Cortex Revealed by Transform Domain Reverse Correlation. (2008)
  • Author(s): Arai T
  • Organizer: 5th Asian-Pacific Conference on Vision
  • Place of Presentation: Brisbane, Australia
  • Year and Date: 2008-07-20
• [Presentation] Curvature Selectivity of Neurons in the Visual Cortex Revealed by Transform Domain Reverse Correlation (2008)
  • Author(s): Arai T, Ito M, Asakawa K, Okamoto R, Ohzawa I
  • Organizer: 5th Asian-Pacific Conference on Vision
  • Place of Presentation: Brisbane, Australia
  • Year and Date: 2008-07-20
• [Presentation] サル第二次視覚野の折れ曲がり刺激の表現における刺激の大きさへの依存性 (2008)
  • Author(s): 伊藤南
  • Organizer: 第31回日本神経科学大会
  • Place of Presentation: 東京
  • Year and Date: 2008-07-09
• [Presentation] Influence of visual saliency on cortical activities: a functional MRI study in awake monkeys (2007)
  • Author(s): Goda N
  • Organizer: 36th Society for Neuroscience Meeting
  • Place of Presentation: San Diego,U.S.A.
  • Year and Date: 2007-11-06
• [Presentation] Color-related subregions in the monkey inferior temporal cortex revealed by functional MRI. (2007)
  • Author(s): 原田卓弥
  • Organizer: 36th Society for Neuroscience Meeting
  • Place of Presentation: San Diego, U.S.A
  • Year and Date: 2007-11-05
• [Presentation] Color-related subregions in the monkey inferior temporal cortex revealed by functional MRI (2007)
  • Author(s): Harada T
  • Organizer: 36th Society for Neuroscience Meeting
  • Place of Presentation: San Diego,U.S.A.
  • Year and Date: 2007-11-05
• [Presentation] サル下側頭皮質における色関連領野の機能的MRI計測 (2007)
  • Author(s): 原田卓弥
  • Organizer: 第30回日本神経科学大会
  • Place of Presentation: 横浜
  • Year and Date: 2007-09-10
• [Presentation] ポップアウト刺激によるサル視覚皮質活動:fMRI研究 (2007)
  • Author(s): 郷田 直一
  • Organizer: 第30回日本神経科学大会
  • Place of Presentation: 横浜
  • Year and Date: 2007-09-10
• [Presentation] The role of line components in the representation of angles embedded within contour stimuli in the primate early visual systems. (2007)
  • Author(s): 伊藤南
  • Organizer: OIST Workshop on Cognitive Neurobiology
  • Place of Presentation: 沖縄
  • Year and Date: 2007-03-11
• [Presentation] The role of line components in the representation of angles embedded within contour stimuli in the primate early visual systems (2007)
  • Author(s): Ito M, Goda N
  • Organizer: OIST Workshop on Cognitive Neurobiology
  • Place of Presentation: 沖縄
  • Year and Date: 2007-03-11
• [Presentation] 私たちの脳はどのようにして輪郭線の形状を識別するのか?大脳皮質視覚領野の初期部分の寄与 (2006)
  • Author(s): 伊藤南
  • Organizer: 第21回生体・生理工学シンポジウム
  • Place of Presentation: 鹿児島
  • Year and Date: 2006-11-18
• [Presentation] 初期視覚系における物体の輪郭線抽出の神経メカニズム (2006)
  • Author(s): 伊藤南
  • Organizer: 第18回日本知能情報ファジィー学会ファジィー・コンピューティング研究部会ワークショップ、第3回脳と知覚研究会ワークショップ
  • Place of Presentation: 岡崎
  • Year and Date: 2006-10-27
• [Presentation] Extraction of angle features embedded within contour stimuli in the macaque early visual system. (2006)
  • Author(s): 伊藤南
  • Organizer: The 4^<th> Asian Conference on Vision
  • Place of Presentation: 松江
  • Year and Date: 2006-07-29
• [Presentation] Comparison of the angle representation in macaque visual areas V1 and V2. (2006)
  • Author(s): 伊藤南
  • Organizer: 第29回日本神経科学大会
  • Place of Presentation: 京都
  • Year and Date: 2006-07-19
• [Book] Proceedings of the 3rd International symposium on autonomous minirobots for research and education(eds. by Murase K., Sekiyama K., Kubota N., Naniwa T., Sitte J.)(How the early visual system extract angles and junctions embedded within contour stimuli?) (2005)
  • Author(s): Ito M
  • Publisher: Springer-Verlag
• [Remarks] ホームページ等
  • URL: http://www.nips.ac.jp/scinfo/