Dynamics of neural network with dynamic synapses and its application

• Project/Area Number: 25730175
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Life / Health / Medical informatics
• Research Institution: The University of Tokyo
• Principal Investigator: KATORI Yuichi 東京大学, 生産技術研究所, 研究員 (20557607)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 神経ネットワーク / 動的シナプス / 短期的シナプス可塑性 / 連想記憶ネットワーク / 数理モデル / 計算論的神経科学

Outline of Final Research Achievements

We proposed a mathematical model of local cortical neural network. The proposed model reproduces the experimentally observed neural activities on prefrontal cortex. We mathematically clarify the concept of synaptic assemblies which characterize a temporally strengthened group of synapses and contribute information representation in the brain. We elucidate dynamical properties on several neural network with dynamic synapses, i.e. the associative memory network. We established the basis of engineering application of neural dynamics by implementing the associative memory network on a programmable device.

Research Products

• [Journal Article] 動的シナプスはリカレントニューラルネットワークの短期記憶性能を向上させる (2015)
  • Author(s): 森竜太、香取勇一、合原一幸
  • Journal Title: 生産研究 Volume: 67 Pages: 295-298
  • NAID: 130005074275
  • Open Access / Acknowledgement Compliant
• [Journal Article] Dynamics on Sparse Coding-Based Neural Network with Short-Term Synaptic Depression (2014)
  • Author(s): 徐牧原、香取勇一、合原一幸
  • Journal Title: SEISAN KENKYU Volume: 66 Issue: 3 Pages: 295-298
  • DOI: 10.11188/seisankenkyu.66.295
  • NAID: 130004678864
  • ISSN: 0037-105X, 1881-2058
  • Open Access / Acknowledgement Compliant
• [Journal Article] Associative Memory Network with Dynamic Synapses (2014)
  • Author(s): Yuichi Katori, Yosuke Otsubo, Masato Okada, Kazuyuki Aihara
  • Journal Title: Advances in Cognitive Neurodynamics Volume: 未定
  • Peer Reviewed
• [Journal Article] Dynamics on Sparse Coding-Based Neural Network with Synaptic Depression (2014)
  • Author(s): Muyuan Xu, Yuichi Katori, Kazuyuki Aihara
  • Journal Title: 生産研究 Volume: 未定
• [Journal Article] Increased firing irregularity as an emergent property of neural-state transition in monkey prefrontal cortex (2013)
  • Author(s): Kazuhiro Sakamoto, Yuichi Katori, Naohiro Saito Shun Yoshida, Kazuyuki Aihara and Hajime Mushiake
  • Journal Title: Plos One Volume: 8(12) Issue: 12 Pages: e80906-e80906
  • DOI: 10.1371/journal.pone.0080906
  • Peer Reviewed
• [Presentation] Enhanced Perceptual Function with Transitive Dynamics Induced by Dynamic Synapses (2015)
  • Author(s): Yuichi Katori, Kazuyuki Aihara
  • Organizer: International Conference on Cognitive Neurodynamics
  • Place of Presentation: 中国 サンヤ
  • Year and Date: 2015-06-06
• [Presentation] Dynamical Theory of cell and synaptic assemblies (2015)
  • Author(s): Yuichi Katori, Kazuyuki Aihara
  • Organizer: 脳と心のメカニズム
  • Place of Presentation: 北海道留寿都村
  • Year and Date: 2015-01-07
• [Presentation] short-term memory ability on recurrent neural network with dynamic synapses (2015)
  • Author(s): Ryota Mori, Yuichi Katori, Kazuyuki Aihara
  • Organizer: 脳と心のメカニズム
  • Place of Presentation: 北海道留寿都村
  • Year and Date: 2015-01-07
• [Presentation] Diverse cross-frequency coupling on a neural network with dynamic synapses (2015)
  • Author(s): Takumi Sase, Yuichi Katori, Kazuyuki Aihara
  • Organizer: 脳と心のメカニズム
  • Place of Presentation: 北海道留寿都村
  • Year and Date: 2015-01-07
• [Presentation] Memory association dynamics on neural network with dynamic synapses (2014)
  • Author(s): Yuichi Katori
  • Organizer: Computational Neuroscience
  • Place of Presentation: カナダ、ケベック
  • Year and Date: 2014-07-28
• [Presentation] Digital Silicon Neuronal Network and its Application to Associative Memory (2014)
  • Author(s): Li Jing, Yuichi Katori, Takashi Kohno
  • Organizer: The 1st International Symposium on Neuromorphic and Non-linear Engineering, 2014.
  • Place of Presentation: 東京
• [Presentation] Reorganization of effective network structure with dynamic synapses in cortical circuit and its possible functions (2013)
  • Author(s): Yuichi Katori
  • Organizer: 22nd Annual Computational Neuroscience Meeting (CNS2013)
  • Place of Presentation: パリ（フランス）
• [Presentation] Associative Memory Network with Dynamic Synapses (2013)
  • Author(s): Yuichi Katori
  • Organizer: International Conference on Cognitive Neurodynamics 2013
  • Place of Presentation: シグツーナ（スウェーデン）
• [Presentation] Bifurcation analysis of Stochastic Inhomogeneous Neural Network with excitatory and inhibitory neurons (2013)
  • Author(s): Takumi Sase, Yuichi Katori, Kazuyuki Aihara
  • Organizer: The 3rd International Symposium on Innovative Mathematical Modelling
  • Place of Presentation: 東京
• [Presentation] Mathematical Modeling of Neural Dynamics and Brain Functions (2013)
  • Author(s): Yuichi Katori
  • Organizer: The 3rd International Symposium on Innovative Mathematical Modelling
  • Place of Presentation: 東京
• [Book] 「神経回路の数理モデル」（『応用数理ハンドブック』の中の項目） (2013)
  • Author(s): 香取勇一
  • Total Pages: 2
  • Publisher: 朝倉書店
• [Book] 「脳の数理モデリング」 （『現象数理学入門』の中の章） (2013)
  • Author(s): 合原一究、辻繁樹、香取勇一、合原一幸
  • Total Pages: 29
  • Publisher: 東京大学出版会
• [Remarks] ResearchMap 香取勇一
  • URL: http://researchmap.jp/katori
• [Remarks] Researchmap 香取勇一
  • URL: http://researchmap.jp/katori