Presentations

Selected Talks (Invited talk etc.）

• 10/2020
  International Symposium on Artificial Intelligence and Brain Science, online.
• 05/2019
  NII Shonan Meeting “Language as Goal-Directed Sequential Behavior: Computational Theories, Brain Mechanisms, Evolutionary Roots,” Kanagawa, Japan.
• 10/2018
  [KAIST Bio-IT Healthcare Initiative II]Half-day workshop on brain-inspired AI: Neural Basis of Intellivence, Daejeon, Korea.
• 10/2018
  18th China-Japan-Korea Joint Workshop on Neurobiology and Neuroinformatics (NBNI 2018), Jeju Island, Korea.
• 09/2017
  The 11th International Conference on Cognitive Science (ICCS 2017), Taipei, Taiwan.
• 07/2017
  Workshop “2017 Brain AI Workshop," Shanghai, China.
• 06/2017
  Workshop “Berlin Deep Learning Workshop 2017," Berlin, Germany.
• 05/2017
  International Symposium on Biology of Decision Making (SBDM 2017), Bordeaux, France.
• 05/2017
  Workshop "Gatsby-Kaken Joint Workshop on AI and Neuroscience," London, UK.
• 12/2016
  Workshop “Arrowhead 10 years on," Sydney, Australia.
• 06/2016
  MONA 2 “Modelling Neural Activity," Hawaii, USA.
• 11/2015
  University of Oxford, Department of Experimental Psychology, Oxford, UK.
• 11/2015
  University College London, Max Planck UCL Centre for Computational Psychiatry and Ageing Research, “Computational Psychiatry talk,” London, UK.
• 10/2015
  SAMSI-Boston Univerisity Workshop “Challenges in Linking Statistical and Mathematical Neuroscience 2015,” Boston, USA.
• 09/2014
  Workshop “One, two, and many brains,” Lisbon, Portugal.
• 07/2014
  OIST Computational Neuroscience Course (OCNC2014), Okinawa, Japan.
• 05/2014
  NII Shonan Meeting “Deep Learning: Theory, Algorithms, and Applications,” Kanagawa, Japan.
• 10/2013
  International symposium “Prediction and Decision Making,” Kyoto, Japan.
• 06/2013
  Workshop “Modeling Neural Activity: Statistics, Dynamical Systems, and Networks,” Hawaii, USA.
• 03/2013
  Workshop “Reward and Decision Making on Risk and Aversion” (in conjunction with Joint Tamagawa-Caltech Lecture Course 2013), Hawaii, USA.
• 11/2012
  California Institute of Technology, Division of Humanities & Social Sciences(Humanities and Social Sciences meeting), Pasadena, USA.
• 11/2012
  Stanford University, Department of Psychology (Memory, Affect, and Decision Group meeting), San Francisco, USA.
• 09/2012
  Symposium “Functional architecture of collective neural activities and their networks: new advances in experimental and theoretical approaches,” Japanese Neuroscience Society Meeting (Neuro2012), Nagoya, Japan.
• 07/2012
  BSI Summer Program 2012 “The Collective Brain,” RIKEN Brain Science Institute, Wako, Japan.
• 11/2011
  Columbia University, Center for Theoretical Neuroscience, New York, USA.
• 11/2011
  New York University, Center for Neural Science, New York, USA.
• 04/2011
  University of Oxford, Department of Experimental Psychology, Oxford, UK.
• 04/2011
  University College London, Gatsby Computational Neuroscience Unit, London, UK.
• 04/2011
  University College London, Wellcome Trust Centre for Neuroimaging (Emotion Club Seminar), London, UK.
• 04/2011
  Workshop on Geometric and Algebraic Statistics 3, University of Warwick, Coventry, UK.
• 11/2010
  California Institute of Technology, Division of Biology (Shimojo Psychophysics Laboratory Seminar), Pasadena, USA.
• 10/2010
  10th China-India-Japan-Korea Joint Workshop on Neurobiology and Neuroinformatics (NBNI 2010), Kunming, China.
• 09/2010
  Symposium “New perspectives on value-based decision making,” Japanese Neuroscience Society Meeting (Neuro2010), Kobe, Japan.
• 08/2010
  Bernstein Center for Computational Neuroscience, Berlin, Germany.
• 08/2010
  Information Geometry and Its Applications III, Leipzig, Germany.
• 02/2010
  Reward and Decision Making Batsheva Conference, Jerusalem, Israel.
• 12/2008
  EPSRC Workshop on Computational Neuroscience, University of Warwick, Birmingham, UK.
• 10/2008
  Open Problems in Neuroscience of Decision Making, OIST Seaside House, Okinawa, Japan.
• 07/2008
  The 3rd APCTP-KAIST Summer School for Brain Dynamics, Korea Advanced Institute of Science and Technology, Daejeon, South Korea.
• 01/2008
  HFSP International Workshop on Neural Control of Attention, Perception, and Learning, OIST, Okinawa, Japan.
• 01/2008
  University College London, Gatsby Computation Neuroscience Unit, London, UK.
• 01/2008
  Paris College de France, Institut des Science Cognitives, Paris, France.
• 01/2008
  The 2nd Japanese-French Frontiers of Science Symposium, Station Biologique, Roscoff, France.
• 11/2007
  RIKEN BSI-MIT Picower Workshop 2007 (talk shared with Dr. N. Fujii), RIKEN BSI, Wako, Japan.
• 10/2007
  Korea Advanced Institute of Science and Technology, Department of Bio and Brain Engineering, Daejeon, Korea.
• 07/2007
  International Conference Stochastic Processes and Applications (ICSPA 2007), Indian Institute of Science, Bangalore, India.
• 07/2007
  Workshop on Mathematical Aspects of Neuroscience, Indian Institute of Science, Bangalore, India (two talks).
• 03/2007
  Spring School in Computational Neuroscience, Shanghai, China.
• 11/2004
  Special Session, International Symposium on Nonlinear Theory and its Applications, Fukuoka, Japan.
• 09-10/2004
  The US-Japan Brain Research Collaborative Program Workshop on Bioinformatic Analysis of Brain Function, Hawaii, USA.
• 09/2004
  Symposium “Neural correlates of action selection based on reward and goal,” Japanese Neuroscience Society Meeting (Neuro2004), Osaka, Japan.
• 05/2004
  Advanced Telecommunications Research Institute (ATR), Computational Neuroscience Laboratories, Kyoto, Japan.
• 03/2004
  The 31st NIPS International Symposium “Multidisciplinary Approaches to Sensorimotor Integration —Old Questions Meet New Concepts—,” NIPS, Okazaki, Japan.
• 12/2002
  National Cancer Institute (NIH), Laboratory of Population Genetics, Bethesda, USA.
• 11/2002
  National Eye Institute (NIH), Laboratory of Sensorimotor Research, Bethesda, USA.
• 11/2002
  Johns Hopkins University, Department of Biomedical Engineering, Baltimore, USA.
• 09/2002
  The 7th Tamagawa Dynamic Brain Forum, Visegrad, Hungary.
• 09/2002
  University of Freiburg, Department of Neurobiology and Biophysics, Freiburg, Germany.
• 09/2002
  Technical University of Berlin, Department of Electrical Engineering and Computer Science, Berlin, Germany.
• 09/2002
  Fraunhofer FIRST, The Intelligent Data Analysis Group, Berlin, Germany.
• 09/2001
  The 6th Tamagawa Dynamic Brain Forum, Breisach, Germany.
• 10/1999
  MIT, Department of Brain and Cognitive Sciences, Boston, USA.
• 04/1997
  ATR, Human Information Processing Research Laboratories, Kyoto, Japan.

Talks/Posters

• Sugiyama M, Tsuda K, Nakahara H.(2020) Sample Space Truncation on Boltzmann Machines Workshop at NeurIPS 2020 (ID: 2), online. (papers [PDF(213KB)])
• Ma N, Harasawa N, Ueno K, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2018) Neuro-computational mechanisms for deciding with predicting others. The 48th Annual Meeting of the Society for Neuroscience (Program No. 333.19), San Diego, CA, USA. (abstract)
• Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2018) Neural mechanism underlying value conversion of others' reward to decision. The 48th Annual Meeting of the Society for Neuroscience (Program No. 333.05), San Diego, CA, USA. (abstract)
• Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2017) Neural mechanisms for converting social value into one's own decision value. The 47th Annual Meeting of the Society for Neuroscience (Program No. 620.03), Washington DC, USA. (abstract)
• Ma N, Harasawa N, Ueno K, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2017) Neural mechanisms for deciding with predicting others in human brain. The 47th Annual Meeting of the Society for Neuroscience (Program No. 620.02), Washington DC, USA. (abstract)
• Ma N, Harasawa N, Ueno K, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2017) Neural mechanisms of predicting others' decisions for one's better decisions. The 40th Annual Meeting of the Japan Neuroscience Society , Chiba, Japan. (abstract)
• Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2017) Neural processes for converting social value into one's own decision value. The 40th Annual Meeting of the Japan Neuroscience Society , Chiba, Japan. (abstract)
• Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2017) Neural mechanisms for social value conversion in decision-making. Reinforcement Learning and Decision Making 2017 (RLDM2017) (Poster 16), Michigan, USA. (abstract)
• Ma N, Harasawa N, Ueno K, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2016) Neural mechanisms for deciding with predicting others. The 46th Annual Meeting of the Society for Neuroscience (Program No. 748.14), SanDiego, USA. (abstract)
• Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2016) Neural mechanisms and computation that mediates value by others’ reward for decision making. The 46th Annual Meeting of the Society for Neuroscience (Program No. 748.13), SanDiego, USA. (abstract)
• Terada S, Sakurai Y, Nakahara H, Fujisawa S. (2016) Integration of multimodal information in hippocampal-retrosplenial-prefrontal circuit. The 31th International Congress of Psychology, Yokohama, Japan. (abstract)
• Terada S, Sakurai Y, Nakahara H, Fujisawa S. (2016) Temporal and rate coding during multimodal integration in hippocampus. The 39th Annual Meeting of the Japan Neuroscience Society (P2-225), Yokohama, Japan. (abstract)
• Ma N, Harasawa N, Ueno K, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2016) Neural mechanisms for decision-making with predicting others: human fMRI The 39th Annual Meeting of the Japan Neuroscience Society (P1-284), Yokohama, Japan.(abstract)
• Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2016) Neural computation underlying value-based decisions including rewards to others. The 39th Annual Meeting of the Japan Neuroscience Society (P1-285), Yokohama, Japan.(abstract)
• Ma N, Harasawa N, Ueno K, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2015) Making better decisions by predicting others' minds. International Symposium on Prediction and Decision Making 2015, Tokyo, Japan.(abstract)
• Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2015) Neural mechanisms for deciding with rewards to others. International Symposium on Prediction and Decision Making 2015, Tokyo, Japan. (abstract)
• Terada S, Sakurai Y, Nakahara H, Fujisawa S. (2015) The representation of abstract information that guides decision making in PFC of rats. The 45th Annual Meeting of the Society for Neuroscience (Program No. 531.16), Chicago, USA. (abstract)
• Ma N, Harasawa N, Ueno K, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2015) Making better decisions by predicting others' minds. The 45th Annual Meeting of the Society for Neuroscience (Program No. 82.05), Chicago, USA. (abstract)
• Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2015) Neural mechanisms for deciding with rewards to others. The 45th Annual Meeting of the Society for Neuroscience (Program No. 82.06), Chicago, USA. (abstract)
• Terada S, Sakurai Y, Nakahara H, Fujisawa S. (2015) Emergence of abstract knowledge that guide decision making in PFC of rats. The 38th Annual Meeting of the Japan Neuroscience Society (3P331), Kobe, Japan. (abstract)
• Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2015) Neural mechanisms for value-based decision-making with reward to others. The 38th Annual Meeting of the Japan Neuroscience Society (1P312), Kobe, Japan. (abstract)
• Ma N, Harasawa N, Ueno K, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2015) Decision-making with predicting other's choices: human fMRI. The 38th Annual Meeting of the Japan Neuroscience Society (1P310), Kobe, Japan. (abstract)
• Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2015) Neural computations for value-based decision-making with reward to other. Reinforcement Learning and Decision Making 2015 (RLDM2015) (Poster T5), Edmonton, Canada. (abstract)
• Fukuda H, Suzuki S, Ma N, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2014) How is reward of others integrated to make one's own decisions in neural mechanisms? Vision, Memory, Thought: How Cognition Emerges from Neural Network (VMT2014) (A.7), Tokyo, Japan. (abstract)
• Terada S, Nakahara H, Fujisawa S. (2014) Emergence of abstract knowledge that guides decision making in rats. The 44th Annual Meeting of the Society for Neuroscience (Program No. 558.09), Washington DC, USA. (abstract)
• Fukuda H, Ma N, Suzuki S, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2014) How is reward of others added to make one’s own decisions in neural mechanisms? The 44th Annual Meeting of the Society for Neuroscience (Program No. 458.09), Washington DC, USA. (abstract)
• Fukuda H, Suzuki S, Ma N, Harasawa N, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2014) Neural mechanisms of integrating others’ outcomes to make one’s own decisions. Neuro 2014, The 37th Annual Meeting of the Japan Neuroscience Society (P1-228), Yokohama, Japan. (abstract)
• Fukuda H, Suzuki S, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2013) How does the knowledge of consequences on others’ outcome affect one’s own value-based decision? The 43rd Annual Meeting of the Society for Neuroscience (Program No. 665.03), San Diego, CA, USA. (abstract)
• Fukuda H, Suzuki S, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2013) Expectation and influence of others' outcomes in decision making for one's own outcome. The 36th Annual Meeting of the Japan Neuroscience Society, 56th Annual Meeting of the Japanese Society for Neurochemistry, and 23rd Annual Conference of the Japanese Neural Network Society (P3-1-172), Kyoto, Japan. (abstract)
• Harasawa N, Nakatani H, Suzuki S, Ueno K, Gardner JL, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2013) Neural mechanisms for inferring others' preferences in decision making. The 36th Annual Meeting of the Japan Neuroscience Society, 56th Annual Meeting of the Japanese Society for Neurochemistry, and 23rd Annual Conference of the Japanese Neural Network Society (P3-1-177), Kyoto, Japan. (abstract)
• Kaveri SR, Nakahara H. (2013) Distinctive neural representations induce respective behavior and dopaminergic activity of sign- and goal-tracking rats. The 36th Annual Meeting of the Japan Neuroscience Society, 56th Annual Meeting of the Japanese Society for Neurochemistry, and 23rd Annual Conference of the Japanese Neural Network Society (P3-2-75), Kyoto, Japan. (abstract)
• Kaveri SR, Nakahara H. (2013) Distinctive neural representations induce respective behavior and dopaminergic activity of sign- and goal-tracking rats. Tamagawa-Caltech Joint Lecture Course, Reward and Decision Making on Risk and Aversion, Hawaii, USA. (abstract)
• Nakahara H. (2012) Neural interaction as a signature of functional structure. The 35th Annual Meeting of the Japan Neuroscience Society (S4-E-1-5), Nagoya, Japan. (abstract)
• Kaveri SR, Koene AR, Laquitaine S, Nakahara H. (2012) Sign-tracking and goal-tracking by a reinforcement learning model. The 42nd Annual Meeting of the Society for Neuroscience (Program No. 499.04), New Orleans, LA, USA. (abstract)
• Kim CH, Tsujino H, Nakahara H. (2011) Learning attentive-depth switching while interacting with an agent. 2011 IEEE/SICE International Symposium on System Integration. 1305–1310. Kyoto, Japan. (papers [PDF(582KB)])
• Kim CH, Tsujino H, Nakahara H. (2011) Decoupling MDPs step by step from a POMDP. The 10th International Conference on Autonomous Agents and Multiagent Systems 2011: Autonomous Robots and Multirobot Systems Workshop. 19–33. Taipei, Taiwan. (papers [PDF(406KB)])
• Santos GS, Gireesh ED, Yu S, Plenz D, Nakahara H. (2011) The structure of higher-order interactions in cortical LFP activity. The 41st Annual Meeting of the Society for Neuroscience (Program No. 661.29), Washington, DC, USA. (abstract)
• Santos GS, Gireesh ED, Plenz D, Nakahara H. (2011) The hierarchical model captures higher-order interactions in cortical activity. The 34th Annual Meeting of the Japan Neuroscience Society (P3-u06), Yokohama, Japan. (abstract)
• Santos GS, Nagasaka Y, Fujii N, Nakahara H. (2010) Separate encoding of reward expectation and social ranking in the primate caudate nucleus. The 40th Annual Meeting of the Society for Neuroscience (Program No. 511.3). San Diego, CA, USA. (abstract)
• Suzuki S, Harasawa N, Ueno K, Kaveri SR, Gardner J, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2010) Emulation of other’s reward prediction error in social value-based decision making. The 40th Annual Meeting of the Society for Neuroscience (Program No. 503.4), San Diego, CA, USA. (abstract)
• Nakahara H. (2010) Computations for value-decision making in nonsocial and social situations: emulation and extraction of contextual information. The 33rd Annual Meeting of the Japan Neuroscience Society (S3-5-1-5), Kobe, Japan. (abstract [PDF(20KB)])
• Santos GS, Nagasaka Y, Fujii N, Nakahara H. (2010) Modulation of caudate activity by social dominance. The 33rd Annual Meeting of the Japan Neuroscience Society (P3-m11), Kobe, Japan. (abstract)
• Suzuki S, Harasawa N, Ueno K, Kaveri SR, Gardner J, Ichinohe N, Haruno M, Cheng K, Nakahara H. (2010) Neural correlates of the emulated-other’s prediction errors in value-based decision making. The 33rd Annual Meeting of the Japan Neuroscience Society (P2-l06), Kobe, Japan. (abstract)
• Kaveri SR, Nakahara H. (2010) Internal time temporal difference model of neural valuation. Computational and Systems Neuroscience 2010 (DOI: 10.3389/conf.fnins.2010.03.00080), Salt Lake City, UT, USA. (abstract)
• Suzuki S, Harasawa N, Ueno K, Gardner J, Ichinohe N, Haruno M, Cheng K, Nakahara H, Kaveri SR. (2010) Does one simulate the other’s value-based decision making by using the neural systems for his own? Computational and Systems Neuroscience 2010 (DOI: 10.3389/conf.fnins.2010.03.00088), Salt Lake City, UT, USA. (abstract)
• Suzuki S, Harasawa N, Nakahara H. (2009) Does one really simulate the other’s value-based decision making in one’s value-based decision making? The 39th Annual Meeting of the Society for Neuroscience (Program No. 194.18), Chicago, IL, USA. (abstract)
• Santos GS, Gireesh ED, Plenz D, Nakahara H. (2009) Cluster organization of instantaneous activity in cortical cultures. The 39th Annual Meeting of the Society for Neuroscience (Program No. 322.2), Chicago, IL, USA. (abstract)
• Santos GS, Gireesh ED, Plenz D, Nakahara H. (2009) Modeling instantaneous network correlations over multiple spatial scales. The 32nd Annual Meeting of the Japan Neuroscience Society (P1-p06), Nagoya, Japan. (abstract)
• Bromberg-Martin E, Matsumoto M, Nakamura K, Nakahara H, Hikosaka O. (2009) Multiple timescales of reward memory in lateral habenula and midbrain dopamine neurons. Computational and Systems Neuroscience 2009 (DOI: 10.3389/conf.neuro.06.2009.03.047), Salt Lake City, UT, USA. (abstract)
• Nakahara H, Shimono M, Uchida G, Tanifuji M. (2008) Stimulus-induced pairwise interactions can be revealed by information geometric approach. Advances in Cognitive Neurodynamics: Proceedings of the International Conference on Cognitive Neurodynamics-2007. 71–75. Springer Netherlands. (papers [PDF(94KB)])
• Santos GS, Nagasaka Y, Takenaka K, Iriki A, Fujii N, Nakahara H. (2008) Social modulation of the prefrontal cortex, parietal cortex, and caudate activity for reward-oriented behavior. The 38th Annual Meeting of the Society for Neuroscience (Program No. 93.11), Washington, DC, USA. (abstract)
• Kaveri SR, Nakahara H. (2008) Uncertainty and discounting of rewards for dopamine activity by dissociating internal and physical times. The 38th Annual Meeting of the Society for Neuroscience (Program No. 98.2), Washington, DC, USA. (abstract)
• Santos GS, Nagasaka Y, Takenaka K, Iriki A, Fujii N, Nakahara H. (2008) Social reward-oriented behavior in the PFC, CN, and parietal cortex. The 31st Annual Meeting of the Japan Neuroscience Society (P3-q12), Tokyo, Japan. (abstract)
• Kaveri SR, Nakahara H. (2008) Generalized reinforcement learning model of dopamine activity. The 31st Annual Meeting of the Japan Neuroscience Society (P2-r07), Tokyo, Japan. (abstract)
• Santos GS, Arisaka M, Higashi T, Plenz D, Nakahara H. (2007) Discovery of putative causal interactions in neuronal population data. The 37th Annual Meeting of the Society for Neuroscience. (Program No. 793.18), San Diego, CA, USA. (abstract)
• Santos GS, Arisaka M, Higashi T, Ozaki T, Plenz D, Nakahara H. (2007) Fine spatio-temporal interactions in multielectrode LFP signals. The 30th Annual Meeting of the Japan Neuroscience Society, 50th Annual Meeting of the Japanese Society for Neurochemistry, and 17th Annual Meeting of the Japanese Neural Network Society (P2-k23), Yokohama, Japan. (abstract)
• Nakamura K, Nakahara H, Ding L, Hikosaka O. (2005) Effects of relative and absolute magnitudes of reward on saccadic eye movement and caudate neuronal activity in monkeys. The 35th Annual Meeting of the Society for Neuroscience (Program No. 517.7), Washington, DC, USA. (abstract)
• Vidal-Naquet M, Miyakawa N, Sato T, Nakahara H, Ullman S, Tanifuji M. (2005) A fragment-based approach for the characterization of V1 receptive fields. The 35th Annual Meeting of the Society for Neuroscience (Program No. 618.3), Washington, DC, USA. (abstract)
• Nakahara H. (2004) Comments on analysis of neural coding by information geometric measure. 2004 International Symposium on Nonlinear Theory and its Applications. 31–34. Fukuoka, Japan. (papers [PDF(1.5MB)])
• Nakahara H. (2004) Dopamine neurons represent context-dependent prediction error. The 27th Annual Meeting of the Japan Neuroscience Society and 3rd Joint Meeting of the Japan Neuroscience Society and the Japanese Society for Neurochemistry (SY14), Osaka, Japan. (abstract)
• Nakahara H, Morita K, Optican LM, Wurtz RH. (2004) A model with visually symmetric intrinsic connections produces an autonomous caudal-rostral spread of neural activity in the superior colliculus. The 34th Annual Meeting of the Society for Neuroscience (Program No. 990.5), San Diego, CA, USA. (abstract)
• Kang S, Nakahara H, Anderson KC, Amari S, Poggio T, Miller EK. (2002) Interaction of prefrontal and dorsal extrastriatal visual cortices of the monkey in delayed-matching sample task. The 32nd Annual Meeting of the Society for Neuroscience (Program No. 282.14), Washington, DC, USA. (abstract)
• Itoh H, Nakahara H, Kawagoe R, Takikawa Y, Hikosaka O. (2002) Context-dependent reward expectation in the basal ganglia. The 32nd Annual Meeting of the Society for Neuroscience (Program No. 280.4), Washington, DC, USA. (abstract)
• Nakahara H, Nishimura S, Inoue M, Hori G, Amari S. (2002) Higher-order gene interaction revealed by log-linear analysis of DNA microarrays. Intelligent Systems for Molecular Biology (11B), Edmonton, AB, Canada. (abstract)
• Hori G, Inoue M, Nishimura S, Nakahara H. (2002) Blind gene classification: An ICA-based gene classification/clustering method. Intelligent Systems for Molecular Biology (38A(i)), Edmonton, AB, Canada. (abstract)
• Kang S, Nakahara H, Anderson KC, Amari S, Poggio T, Miller EK. (2002) Interaction of prefrontal and dorsal extrastriatal visual cortices of the monkey in delayed-matching sample task. The 25th Annual Meeting of the Japan Neuroscience Society (II-F-254), Tokyo, Japan. (abstract)
• Itoh H, Nakahara H, Kawagoe R, Takikawa J, Hikosaka O. (2002) Context-dependent reward expectation in the basal ganglia. The 25th Annual Meeting of the Japan Neuroscience Society (II-F-259), Tokyo, Japan. (abstract)
• Hori G, Inoue M, Nishimura S, Nakahara H. (2001) Blind gene classification: an application of a signal separation method. Genome Informatics Workshop. 255–256. Tokyo, Japan. (papers)
• Hori G, Inoue M, Nishimura S, Nakahara H. (2001) Blind gene classification on ICA of microarray data. Independent Component Analysis and Blind Signal Separation 2001. 332–336. San Diego, CA, USA. (papers [PDF(94KB)])
• Wu S, Amari S, Nakahara H. (2001). Asymptotic behaviors of population codes. Proceedings of the 10th Annual Computational Neuroscience Meeting: Neurocomputing 44–46: 697–702. Monterey, CA, USA. (papers)
• Nakahara H, Amari S, Tatsuno M, Kang S, Kobayashi K, Anderson, KC, Miller EK, Poggio T. (2001) Information geometric measures for spike firing. The 31st Annual Meeting of the Society for Neuroscience (Program No. 821.46), San Diego, CA, USA. (abstract)
• Nakahara H, Itoh H, Hikosaka O, Kawagoe R, Takikawa Y, Aihara K. (2001) Effects of caudate neural activity on memory-guided saccades. The 7th Triennial Meeting of the International Basal Ganglia Society (page 68), Waitangi, New Zealand. (abstract)
• Nakahara H, Amari S, TatsunoM, Kang S, Kobayashi K. (2001) Information-geometric measure for spike data analysis. The 24th Annual Meeting of the Japan Neuroscience Society and 44th Annual Meeting of the Japanese Society for Neurochemistry (PA2-111), Kyoto, Japan. (abstract)
• Itoh H, Nakahara H, Hikosaka O, Kawagoe R, Takikawa Y, Aihara K. (2000) Influences of caudate neural activity on memory-guided saccades. The 23rd Annual Meeting of the Japan Neuroscience Society and 10th Annual Meeting of the Japanese Neural Network Society (P-138), Yokohama, Japan. (abstract)
• Nakahara H, Wu S, Amari S. (2000) Attention modulation of neural tuning through peak and base rate. The 26th Seiriken International Symposium on Neural Mechanisms of Visual Perception and Cognition (page 83), Aichi, Japan. (abstract)
• Itoh H, Nakahara H, Hikosaka O, Kawagoe R, Takikawa K, Aihara K. (2000) Evidence for the caudate influences on memory-guided saccades. The 30th Annual Meeting of the Society for Neuroscience (Program No. 254.9), New Orleans, LA, USA. (abstract [PDF(12KB)])
• Wu S, Nakahara H. (1999) Optimize the distribution of preferred stimulus in a population code. Proceedings of the 5th International Conference on Neural Information Processing. 326–330. San Francisco, CA, USA. (papers [PDF(127KB)])
• Doya K, Nakahara H, Bapi RS, Hikosaka O. (1999) Multiple representations and algorithms for sequence learning. The 2nd International Conference on Cognitive Science. 17–19. Tokyo, Japan. (papers [PDF(106KB)])
• Trappenberg T, Nakahara H, Hikosaka O. (1998) Modeling the reward-dependent activity pattern of caudate neurons. Proceedings of the 8th International Conference on Artificial Neural Networks. 973–978. Skeovde, Sweden. (papers [PDF(139KB)])
• Nakahara H, Doya K, Hikosaka O, Nagano S. (1998) Reinforcement learning with multiple representations in the basal ganglia loops for sequential motor control. Proceedings of the International Joint Conference on Neural Networks. 1553–1558. Anchorage, AK, USA. (papers)
• Nakahara H, Trappenberg T, Hikosaka O, Kawagoe R, Takikawa Y. (1998) Computational analysis on reward-modulated activities of caudate neurons. The 28th Annual Meeting of the Society for Neuroscience (Program No. 649.5), Los Angeles, CA, USA. (abstract [PDF(12KB)])
• Nakahara H, Doya K, Hikosaka O. (1998) Benefit of multiple representations in parallel cortico-basal ganglia mechanisms for acquisition and execution of visuo-motor sequences. The 6th Triennial Meeting of the International Basal Ganglia Society Meeting (page 29), Cape Cod, MA, USA. (abstract)
• Nakahara H, Doya K, Hikosaka O, Nagano S. (1997) Multiple representations in the basal ganglia loops for acquisition and execution of sequential motor control. The 27th Annual Meeting of the Society for Neuroscience (Program No. 304.8), New Orleans, LA, USA. (abstract [PDF(12KB)])
• Nakahara H, Doya K. (1995) Dynamics of attention as near saddle-node bifurcation behavior. Proceedings of the 2nd Joint Symposium on Neural Computation of University of California, San Diego and California Institute of Technology. 1–8. San Diego, CA, USA. (papers [PDF(152KB)])
• Nakahara H, Nagano S. (1993) Everyday conversational reasoning based on naïve concepts. Proceedings of the International Symposium on Spoken Dialogue. 107–111. Tokyo, Japan. (papers)