SAKAI Ko
- Affiliation
- Institute of Systems and Information Engineering
- Official title
- Professor
- URL
- Fax
- +81-29-853-5206
- Research fields
Neurophysiology / General neuroscience Experimental psychology Cognitive science - Research keywords
vision perception 3D perception attention brain science computational neuroscience cognitive neuroscience - Research projects
Neural Mechanisms underlying Self-initiated Attention 2024-04 -- 2028-03 SHIOIRI Satoshi JSPS/Grant in Aid for Scientific Research (A) Evolution of the Cortical Representation of Objects --- Mixed Simultaneous Selectivity and Population Coding in the intermediate Layers 2023-04 -- 2027-03 SAKAI Ko Japan Society for the Promotion of Science/Grant-in-Aid for Scientific Research(B) 18,590,000Yen Conformation of the cortical representation of scene 2020-04 -- 2024-03 SAKAI Ko Japan Society for the Promotion of Science/Grant-in-Aid for Scientific Research (B) 17,160,000Yen Audiovisual spatial attention controlled by self-initiated attention 2019-04 -- 2022-03 SHIOIRI Satoshi Japan Society for the Promotion of Science/Grant-in-Aid for scientific Reseach (A) 4,420,000Yen 被虐待児童へのアートセラピーの適応：認知神経科学による現象理解と有効なアートワークの提案 2018-10 -- 2020-03 SAKAI Ko Mitsubishi Foundation/Research Grant 2,600,000Yen Generation of Intermediate Representation of Shape based on Figure-Ground Segregation 2017-04 -- 2020-03 SAKAI Ko Japan Society for the Promotion of Science/Grant-in-Aid for Scientific Research (B) 17,680,000Yen 視覚数理モデル構築のための基盤プラットフォーム開発 2017-03 -- 2018-03 山口陽子 理化学研究所/INCF日本ノード Visiome PF 200,000Yen 神経情報処理国際研究集会 2016-04 -- 2017-03 SAKAI Ko NICT/NICT 国際交流プログラム 5,140,000Yen 近距離通信センサの受信距離拡張と位置情報 2016-04 -- 2017-03 マウリシオ・クグレ 総務省/SCOPE 600,000Yen Cortical Representation of Figure-Ground --- Toward Understanding Natural Scenes 2014-04 -- 2017-03 SAKAI Ko Japan Society for the Promotion of Science/Grant-in-Aid for Scientific Research (B) 12,610,000Yen more... - Career history
1985-04 -- 1991-08 オリンパス光学工業株式会社 1995 -- 1997 フロンティア研究システムフロンティア研究員 1997 -- 1999-11 RIKEN Brain Science Institute脳科学総合研究センターScientist 1999-12 -- 2009-03 University of TsukubaAssociate Professor 2009-04 -- (current) University of TsukubaProfessor 2010-04 -- 2012-03 理化学研究所非常勤研究員 - Academic background
-- 1983-03 The University of Electro-Communications Faculty of Electro Communications 機械工学科 -- 1985-03 The University of Electro-Communications Graduate School, Division of Electro Communications -- 1995-05 University of Pennsylvania Graduate School, Division of Science and Engineering Bioengineering - Degree
1995-05 Ph.D. in Bioengineering University of Pennsylvania 1991-08 Master in Bioengineering University of Pennsylvania 1985-03 工学修士 電気通信大学 - Academic societies
2003 -- (current) Organization for Computational Neuroscience 1995 -- (current) Society for Neuroscience 2007 -- 2020 American Physiological Society 2003 -- (current) Vision Sciences Society 2009 -- (current) THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS. 1995 -- (current) THE JAPAN NEUROSCIENCE SOCIETY 1996 -- (current) JAPANESE NEURAL NETWORK SOCIETY 1995 -- (current) Vision Society of Japan - Honors & Awards
2020-05 IEICE fellow 2018-10 日本神経回路学会 優秀研究賞 2013-11 Cognitive Science Paper Award ICONIP 2013 2006-05-20 映像情報メディア学会 船井賞（技術賞） 1998 日本神経回路学会 研究賞 - Refereed academic journal/Refereed international conference paper
- Representation of Natural Contours by a Neural Population in Monkey V4
Machida Itsuki; Shishikura Motofumi; Yamane Yukako; Sa...
eNeuro/11(3), 2024-03-01 - Correlation between neural responses and human perception in figure-ground segregation
Shishikura Motofumi; Tamura Hiroshi; Sakai Ko
Frontiers in systems neuroscience/16/pp.1-17, 2023-01-12 - Dimensionality of the intermediate-level representation of shape and texture in monkey V4
Kodama Atsushi; Kimura Kouji; Sakai Ko
NEURAL NETWORKS/153/pp.444-449, 2022-09 - Figure-ground responsive fields of monkey V4 neurons estimated from natural image patches
Kimura Kouji; Kodama Atsushi; Yamane Yukako; Sakai Ko
PLOS ONE/17(6)/pp.1-27, 2022-06 - Cortical Coding of Surface Textures and Contour Shapes in the Intermediate-level Visual Area V4.
Machida Itsuki; Kodama Atsushi; Kimura Kouji; Shishikura ...
CCIS (Communications in Computer and Information Science series)/1517/pp.37-45, 2021-12 - Interaction of surface pattern and contour shape in the tilt after effects evoked by symmetry
Sakai Ko; Sakata Yui; Kurematsu Ken
Scientific reports/11(1)/p.8024, 2021-04 - Population coding of figure and ground in natural image patches by V4 neurons
Yamane Yukako; Kodama Atsushi; Shishikura Motofumi; Kimur...
PloS one/15(6), 2020-06 - Orientation Dependence of Surround Modulation in the Population Coding of Figure/Ground
Kondo Keiichi; Sakai Ko
Lecture Notes in Computer Science/6444(Part II)/pp.565-573, 2010-01 - Perception of Symmetry in Natural Images A Cortical Representation of Shape
Sakai Ko; Kurematsu Ken; Matsuoka Shouhei
Lecture Notes in Computer Science/8836/pp.135-141, 2014 - Receptive Field Structure of Border Ownership-selective Cells in Response to Direction of Figure.
K. Sakai; K. Tanaka; R. von der Heydt; E. Niebur
BMC Neuroscience/20 (Suppl)(5)/pp.7-7, 2019-11 - Spatial Structure of Receptive Fields and Surrounds in Response to Local Figure-Ground Configuration in Monkey V4
Kimura K; Yamane Y; Tamura H; Sakai Ko
The Australian Journal of Intelligent Information Processing Systems/17(2)/pp.7-13, 2019-12 - Perception and Saccades during Figure-Ground Segregation and Border-Ownership Discrimination in Natural Contours
Wagatsuma N; Urabe M; Sakai Ko
IEICE TRANS. INF. & SYST.,/E103-D(5)/pp.1126-1134, 2020-03 - Invariance to low-level features and partial transfer over space in the tilt aftereffects evoked by symmetrical patterns
Sakata Yu; Kurematsu Ken; Wagatsuma Nobuhiko; Sakai Ko
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION/36(2)/pp.283-291, 2019-02 - Interactions Elicited by the Contradiction Between Figure Direction Discrimination and Figure-Ground Segregation
Wagatsuma Nobuhiko; Urabe Mika; Sakai Ko
Frontiers in psychology/9, 2018-09 - Analysis of real-world illumination -Lighting changes perception of specularity-
Mori Yuito; Sakai Ko
Journal of Science and Technology in Lighting/42/p.in press, 2018 - Modeling the Time-Course of Responses for the Border Ownership Selectivity Based on the Integration of Feed forward Signals and Visual Cortical Interactions
Wagatsuma Nobuhiko; Sakai Ko
FRONTIERS IN PSYCHOLOGY/7, 2017-01 - Representation of Local Figure-Ground by a Group of V4 Cells
Hasuike M.; Yamane Y.; Tamura H.; Sakai K.
Lecture Note in Computer Science, Springer/9947/pp.131-137, 2016-10 - Perceptual Representation of Material Quality: Adaptation to BRDF-Morphing Images
Kudou K.; Sakai K.
Lecture Note in Computer Science, Springer/9950/pp.208-212, 2016-10 - Sparse coding generates curvature selectivity in V4 neurons.
Hatori Yasuhiro; Sakai Ko
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION/33(4)/pp.527-537, 2016-04 - Perceptual representation and effectiveness of local figure-ground cues in natural contours
Sakai Ko; Matsuoka Shouhei; Kurematsu Ken; Hatori Yasuhiro
FRONTIERS IN PSYCHOLOGY/6/p.1685, 2015-11 - Figure-Ground Segregation by a Population of V4 Cells --- A Computational Analysis on Distributed Representation
Hasuike Masaharu; Ueno Shuto; Minowa Dai; Yamane Yukako; Tamu...
Lecture Notes in Computer Science/9490/pp.617-622, 2015-11 - Facilitatory mechanisms of specular highlights in the perception of depth
Sakai Ko; Meiji Ryoko; Abe Tetsuya
VISION RESEARCH/115(B::SI)/pp.188-198, 2015-10 - Neural construction of 3D medial axis from the binocular fusion of 2D MAs
Qiu Wei; Hatori Yasuhiro; Sakai Ko
NEUROCOMPUTING/149(B)/pp.546-558, 2015-02 - A search for material representation in the cortex
Sakai Ko
The Proceedings of Annual Conference of Japanese Neural Network Society/1(1)/pp.42-43, 2014-09 - Early Representation of Shape by Onset Synchronization of Border-Ownership-Selective Cells in the V1-V2 Network
Hatori Yasuhiro; Sakai Ko
Journal of Optical Society of America, A/31(4)/pp.716-729, 2014-04 - more...
- Representation of Natural Contours by a Neural Population in Monkey V4
- Books
- 感覚・知覚の科学
内川恵二編; +酒井 宏
朝倉書店, 2008-10 - 面知覚の基礎としての境界所有の皮質メカニズム
酒井 宏
日本神経回路学会誌, 2007-01 - ヒューマンインフォメーション
塩入 諭; 酒井 宏; 井上哲理; 小峯一晃; 新井啓之
映像情報メディア学会誌, 2006-08 - ブレインサイエンスレビュー2007
伊藤正男・川合述吏編; +酒井 宏
クバプロ（株）, 2006-01 - ヒューマンインフォメーション
塩入諭; 酒井 宏; 井上哲理; 小峰一晃; 新井啓之
映像情報メディア学会誌, 2004-08 - 初期視覚機能
酒井 宏
映像情報メディア学会誌, 2004-01 - 視覚情報処理ハンドブック
内川恵二編 ; + 酒井 宏;
朝倉書店, 2000-01 - 視知覚と計算論-ボトムアップモデルと心理物理学の融合の手掛かり
酒井 宏、小島比呂志
日本神経回路学会誌, 1999-01 - Computational analysis of the nonlinear spatial structure in V1 complex cells
K. Sakai and S. Tanaka
日本神経回路学会誌, 1999-01 - 視覚の計算論的モデル － テクスチャーと遮蔽と３次元知覚
酒井 宏
Vision, 1996-01 - NEXUS User Manual, beta release-version 1.0
P. Sajda; K. Sakai; L. H. Finkel
University of Pennsylvania Technical Report, 1994-01 - NEXUS: A neural simulator for integrating top-down and bottom-up modeling.
P. Sajda; K. Sakai; S-C. Yen; L. H. Finkel
Neural Network Simulation Environment, 1994-01 - NEXUS User Manual, beta release-version 0.8
P. Sajda; K. Sakai; L. H. Finkel
University of Pennsylvania Technical Report, 1992-01
- 感覚・知覚の科学
- Conference, etc.
- Construction of V4 model neurons with the generalization to multiple visual features
Hara T.; Machida I.; Sakai K
Annual Meeting 2023, Japanese Neuroscience Society/2023-08-01--2023-08-04 - Representation of contour shape and surface texture in monkey V4
Machida I.; Yamane Y.; Sakai K
Annual Meeting 2023, Japanese Neuroscience Society/2023-08-01--2023-08-04 - Modeling multiple preferences in V4 by encoding CNN to neural responses
Hara T.; Machida I.; Shishikura M.; Sakai K
Annual Meeting 2023, Japanese Neural Network Society/2023-09-04--2023-09-06 - Both V4 population and human perception correlate with contour features in figure-ground segregation
Shishikura M.; Machida I.; Sakai K
Annual Meeting 2023, Japanese Neural Network Society/2023-09-04--2023-09-06 - サル視覚野V4における形状の同時符号化
町田 樹; 酒井 宏
日本視覚学会 冬季大会/2024-01-17--2024-01-19 - Ｖ４における面表現の形成 — 自然画像中の輪郭から図領域を決める神経細胞集団
酒井 宏
視覚科学フォーラム/2023-10-26--2023-10-27 - Construction of the cortical representation of natural objects --- from pixels to objects
Sakai K.
FY 2023 RIEC Annual Meeting on Cooperative Research Projects/2024-02-15--2024-02-15 - Detection of Self-initiated Attention by Criticality Analysisof EEG
Oka F.; Sakai K.
FY 2023 RIEC Annual Meeting on Cooperative Research Projects/2024-02-15--2024-02-15 - 臨界解析とネットワーク解析を用いたEEGからの自発的注意移動の検出
岡 楓莉; 酒井 宏
日本視覚学会 冬季大会/2024-01-17--2024-01-19 - 感情によるユニーク色知覚の変調 ～ 個人に依存する色方向 ～
小松崎摩耶; 塩入 愉; 酒井 宏
ニューロコンピューティング研究会/2023-12-22--2023-12-23 - 3次元形状知覚を変調する自然光源の特徴
山本雅之; 酒井 宏
日本視覚学会 冬季大会/2024-01-17--2024-01-19 - 自発的注意による神経ダイナミクスの変調
今西拓也; 酒井 宏
令和４年度電気通信研究所共同プロジェクト研究発表会/2023-02-16 - 3次元形状知覚の照明依存性 ~ 照明画像の統計的解析 ~
山本雅之; 酒井 宏
日本視覚学会 夏季大会/2022-09-05--2022-09-07 - Population responses of monkey V4 neurons correlate with human figure-ground perception.
Shishikura Motofumi; Tamura Hiroshi; Sakai Ko
NEURO 2022/2022-06-30--2022-07-03 - Gamma activity spindles in V4 LFPs are modulated by stimulus dynamics and attentional demand.
Motofumi S.; Ernst U. A.; Grothe I.; Kreiter A. K.; Sakai...
Society of Neuroscience, Annual Meeting 2022/2022-11-18--2022-11-23 - Cortical Coding of Surface Textures and Contour Shapes in the Intermediate-level Visual Area V4.
Machida Itsuki; Kodama Atsushi; Kimura Kouji; Shishikura ...
International Conference on Neural Information Processing (ICONIP)/2021-12-08--2021-12-12 - サルV4野の神経反応が示す次元数の推定
樹神 篤; 酒井 宏
第３１回日本神経回路学会全国大会/2021-09-20--2021-09-22 - 感情によるユニーク色知覚の変化
酒井 宏; 柴田紀代
日本視覚学会 夏季大会/2020-9-17--2020-9-18 - サルV4における表面と形状の同時表現
町田 樹; 樹神 篤; 酒井 宏
第30回日本神経回路学会全国大会/2020-12-03--2020-12-04 - サルV4野FG選好性細胞の応答とヒト図地知覚の一貫性の相関解析
宍倉基文; 山根ゆか子; 田村 弘; 酒井 宏
第30回日本神経回路学会全国大会/2020-12-03--2020-12-04 - Packet-based selective information transmission through gamma oscillations in monkey V4 local-field-potentials during attention task.
Shishikura Motofumi; Sakai Ko
RIEC Annual meeting on cooperative research projects/2021-02-18 - V4 における表面と形状の同時表現
町田 樹; 酒井 宏
IEICE NC/2021-03-3--2021-03-04 - Voluntariness based separation of attentional mechanisms in a visual search task－A possible indication for a new paradigm.
Boger Matheus; 酒井 宏
映像情報メディア学会 ヒューマンインフォメーション研究会/2021-03-05 - Figure-ground consistency across natural image patches in monkey V4.
Shishikura Motofumi; Kimura Kouji; Sakai Ko
Asia-Pacific Computational and Cognitive Neuroscience Conference (AP-CCN) 2020/2020-09-26--2020-09-27 - Figure-Ground Coding in Monkey V4 --- Receptive Field Structure and Population Coding.
K. Sakai; K. Kimura; Y. Yamane; H. Tamura
Annual Meeting, Japanese Neuroscience Society (Neuro 2019)/2019-07-25--2019-07-28 - more...
- Construction of V4 model neurons with the generalization to multiple visual features
- Intellectural property rights
- Method of judging particle agglutination pattern.
K. Sakai; H. Yonekawa; T. Kano
- Method of judging particle agglutination pattern.
- Teaching
2024-10 -- 2025-02 Computer Science Seminar Af University of Tsukuba. 2024-10 -- 2025-02 Computer Science Seminar Bf University of Tsukuba. 2024-04 -- 2024-08 Research in Computer Science Is University of Tsukuba. 2024-10 -- 2025-02 Research in Computer Science IIf University of Tsukuba. 2024-04 -- 2024-08 Computer Science Seminar B University of Tsukuba. 2024-10 -- 2025-02 Computer Science Seminar B University of Tsukuba. 2024-10 -- 2025-02 Research in Computer Science D University of Tsukuba. 2024-10 -- 2025-02 Research in Computer Science B University of Tsukuba. 2024-10 -- 2025-02 Research in Computer Science f University of Tsukuba. 2024-10 -- 2025-02 Research in Computer Science A University of Tsukuba. more... - Talks
- 自発的注意とV4細胞の集団符号化
酒井 宏
東北大学 電気通信研究所 共同プロジェクト研究会/2021-03-29--2021-03-29 - 腹側経路を通して形成される面の皮質表現
酒井 宏
視覚における世界と社会の理解研究会/2020-10-23--2020-10-30 - Spatial Structure of Receptive Fields and Surrounds in Response to Figure-Ground Structure in Monkey V2 and V4.
Sakai Ko
Institute for Theoretical Physics, University of Bremen, Seminar/2019-07-19 - Dynamics of γ oscillation: towards understanding the neural mechanisms underlying top-down attention
酒井 宏
東北大学 電気通信研究所 共同プロジェクト研究会/2020-02-19--2020-02-19 - Receptive Field Structure of Border Ownership-Selective Cells in Response to Direction of Figure.
酒井 宏
東北大学，電気通信研究所，共同プロジェクト研究会/2019-02-20--2019-02-20 - Cortical Representation of Figure and Shape--- Towards understanding the construction of an object in the visual system
Sakai Ko
Centre for Integrative Neuroplasticity, Dept. of Biosciences, University of Oslo, Seminar/2018-05-23--2018-05-23 - Cortical Representation of Figure and Shape
Sakai Ko
Faculty of Science and Technology, Norwegian University of Life Sciences, Seminar/2018-04-27--2018-04-27 - Intermediate Representation of Figure and Shape in the Visual Cortex
Sakai Ko
Institute for Theoretical Physics, University of Bremen, Seminar/2017-09-21--2017-09-21 - Cortical Representation of Figure and Shape
Sakai Ko
Institute of Perception, Action and Behavior, University of Edinburgh, IPAB Seminar/2017-09-14--2017-09-14 - 大脳皮質はどのように物体を表現しているのか --- 自然画像に最適化した階層的抽象化
酒井 宏
つくば新分野産業開拓懇談会/2017-02-03 - 脳科学から見えてくる新世代の人工知能：大脳皮質からディープラーニングへ
酒井 宏
Future Robotics Forum 2015/2015-11-27--2015-11-27 - ニューロサイエンス最前線：大脳皮質からディープラーニングへ
酒井 宏
茨城研究開発型企業交流協会(IRDA) 総会/2016-05-26--2016-05-26 - Surround Modulation Reproduces the Robust Perception of Figure-Ground
Sakai Ko
Dalian Nationalities University, CS Departmental Seminar/2013-12-12--2013-12-12 - 視覚皮質の計算論的モデル---形状知覚における図地分離と階層性
酒井 宏
全脳アーキテクチャ勉強会「大脳皮質とDeep Learning」/2014-01-30--2014-01-30 - 形状の知覚に向けて---V4 曲率選択性の生起機構
酒井 宏
東北大学 電気通信研究所 共同プロジェクト研究会/2014-03-03--2014-03-03 - 面の知覚から形の知覚へ---計算論的アプローチ
酒井 宏
「視知覚の理解へ向けて －生理、心理物理、計算論による探求－」生理学研究所 研究会/2012-10-04--2010-10-05 - Integration of Shading and Highlight in the Perception of 3D shape
酒井 宏
視覚認識機能のモデル実現のための協調的システムの研究会/2010-11-05 - 面の知覚と形状の表現
酒井 宏
日本神経回路学会 公開講座/2009-03-10 - Attention in early vision for the perception of figure direction
酒井 宏
東北大学電気通信研究所 共同研究プロジェクト研究会/2008-11-29 - 眼間遅延からの奥行き・運動知覚
酒井 宏
東北大学電気通信研究所 共同研究プロジェクト研究会/2007-10-26 - 周辺変調による図法校検出 --- 計算論的アプローチ
酒井 宏
「視知覚研究の融合を目指して － 生理、心理物理、計算論」研究会/2007-06-15 - Border-ownership Determination by the Surround Modulation in Early Vision
酒井 宏
Bernstein Center for Computational Neuroscience Seminar/2007-04-04 - Asymmetric surrounding modulation in border-ownership determination
酒井 宏
東北大学電気通信研究所 共同研究プロジェクト研究会/2006-09-30 - Cortical Mechanisms for Border-Ownership Determination: A Computational Approach
酒井 宏
RIKEN Brain Science Institute Forum/2005-10-04 - Cortical Mechanisms for Border-Ownership Determination - A Computational Approach
酒井 宏
「視知覚のメカニズム － 生理、心理物理、計算論的アプローチ」研究会/2004-06-01 - more...
- 自発的注意とV4細胞の集団符号化
- Professional activities
2021-09 -- 2023-08 The Japan Neuroscience Society 大会プログラム委員 2019-10 -- (current) The Institute of Electronics, Information and Communication Enineers (IEICE) フェロー 2018-12 -- 2019-08 THE JAPAN NEUROSCIENCE SOCIETY プログラム委員会/委員 2017-04 -- 2019-11 International Conference on Pattern Recognition Review Committee, member 2020-04 -- (current) The Institute of Electronics, Information and Communication Enineers (IEICE) フェロー・シニア会員推薦委員会/委員 2017-01 -- (current) 日本視覚学会 世話人 2017 -- (current) International Conference on Neural Information Processing Program Committee 2017-04 -- (current) Japanese Neural Network Society (JNNS) 顧問 2016-02 -- 2017-03 International Conference on Neural Information Processing, 2016 Organizing Committee 2015-03 -- 2017-03 日本脳科学関連学会連合 評議員 more... - University Management
2021-04 -- (current) システム情報系 研究倫理委員会 委員 2021-04 -- 2022-03 情報メディア創成学類 進路指導委員会 委員長 2020-04 -- 2021-03 情報メディア創成学類 広報委員会 委員 2019-04 -- 2021-03 コンピュータサイエンス専攻 学生評価委員会 委員 2018-07 -- 2020-03 情報メディア創成学類 入試委員会 委員 2016-04 -- 2017-03 情報メディア創成学類 FD委員会 委員長 2016-04 -- 2017-03 情報学群 研究倫理教育責任者 2016-04 -- 2017-03 情報工学域 域長代理 2015-04 -- 2017-03 システム情報系 研究倫理委員会 委員長 2015-04 -- 2016-03 留学生センター 運営委員会 委員 more... - Message
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My interests lie on the understanding of visual perception. Computational modeling based on physiological and psychophysical findings is my tool to approach the problem.
(Last updated: 2024-12-10)