Functional activity of cortical interneurons in motor expression and regulation

2008 Fiscal Year Final Research Report

• Project/Area Number: 18700386
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Neurophysiology and muscle physiology
• Research Institution: The Institute of Physical and Chemical Research
• Principal Investigator: ISOMURA Yoshikazu The Institute of Physical and Chemical Research, 脳回路機能理論研究チーム, 副チームリーダー (00415077)
• Project Period (FY): 2006 – 2008
• Keywords: 神経細胞 / 運動野 / 大脳皮質 / ラット / 神経生理学

Research Abstract

本研究課題では、運動課題を遂行中のラットの一次運動野において、どのインターニューロン・サブタイプがどのように運動機能の発現や調節に関与しているのかを解明することを目指した。そして、脳定位固定状態のラットが前肢の自発運動課題を効率よく学習する装置を開発し、傍細胞記録法とマルチユニット記録法を被検動物に適用し、特にfast-spikingインターニューロンは運動指令の抑制ではなく形成に参加していることなどを示した。

Research Products

• [Journal Article] Directional organization of sensorimotor oscillatory activity related to the electromyogram in the monkey (2009)
  • Author(s): Tsujimoto T, Mima T, Shimazu H, Isomura Y
  • Journal Title: Clin Neurophysiol (in press)
  • Peer Reviewed
• [Journal Article] Entrainment of neocortical neurons and gamma oscillations by the hippocampal theta rhythm (2008)
  • Author(s): Sirota A, Montgomery S, Fujisawa S, Isomura Y, Zugaro M, Buzsaki G
  • Journal Title: Neuron 60(4) Pages: 683-697
  • Peer Reviewed
• [Journal Article] A network mechanism underlying hippocampal seizure-like synchronous oscillations (2008)
  • Author(s): Isomura Y, Fujiwara-Tsukamoto Y, Takada M
  • Journal Title: Neurosci Res 61(3) Pages: 227-233
  • Peer Reviewed
• [Journal Article] Distinct types of ionic modulation of GABA actions in pyramidal cells and interneurons during electrical induction of hippocampal seizure-like network activity (2007)
  • Author(s): F.-Tsukamoto Y, Isomura Y, Imanishi M, Fukai T, Takada M
  • Journal Title: Eur J Neurosci 25(9) Pages: 2713-2725
  • Peer Reviewed
• [Journal Article] Temporal integration by stochastic recurrent network dynamics with bimodal neurons (2007)
  • Author(s): Okamoto H, Isomura Y, Takada M, Fukai T
  • Journal Title: J Neurophysiol 97(6) Pages: 3859-3867
  • Peer Reviewed
• [Journal Article] Direct recording of theta oscillations in primate prefrontal and anterior cingulate cortices (2006)
  • Author(s): Tsujimoto T, Shimazu H, Isomura Y
  • Journal Title: J Neurophysiol 95(5) Pages: 2987-3000
  • Peer Reviewed
• [Journal Article] Integration and segregation of activity in entorhinal-hippocampal subregions by neocortical slow oscillations (2006)
  • Author(s): Isomura Y, Sirota A, Ozen S, Montgomery S, Mizuseki K, Henze DA, Buzsaki G
  • Journal Title: Neuron 52(5) Pages: 871-882
  • Peer Reviewed
• [Presentation] Functional and morphological identification of single cortical neurons in behaving rats. Creativity, Dynamics, and Mutual Interaction (2009)
  • Author(s): Isomura Y
  • Organizer: 11th Tamagawa Dynamic Brain Forum
  • Place of Presentation: Atami, Japan
  • Year and Date: 20090302-04
• [Presentation] ラット運動野の錐体細胞と介在細胞の機能的活動の解析 (2008)
  • Author(s): 礒村宜和
  • Organizer: .平成20年度生理学研究所シナプス研究会
  • Place of Presentation: 岡崎
  • Year and Date: 20081204-05
• [Presentation] Functional and morphological identification of neocortical neurons in rodents performing operant motor task, Soc Neurosci Abstr 38: 860.23 (2008)
  • Author(s): Isomura Y, Harukuni R, Takekawa T, Aizawa H, Fukai T
  • Organizer: 38th annual meeting
  • Place of Presentation: Washington DC
  • Year and Date: 20081115-19
• [Presentation] Functional and morphological identification of single cortical neurons in operant-task-performing rats. Neurosci Res 61(suppl) : S60 (2008)
  • Author(s): Isomura Y, Harukuni R, Takekawa T, Aizawa H , Fukai T
  • Organizer: 31th annual meeting
  • Place of Presentation: Tokyo
  • Year and Date: 20080709-11
• [Presentation] 傍細胞記録法によるラット運動野ニューロンの機能的および形態学的同定. 大脳皮質-大脳基底核連関と前頭葉機能 (2008)
  • Author(s): 礒村宜和
  • Organizer: 平成19年度生理学研究所研究会
  • Place of Presentation: 岡崎
  • Year and Date: 20080117-18
• [Presentation] 慢性傍細胞記録法による大脳皮質神経細胞の機能的および形態学的同定 (2008)
  • Author(s): 礒村宜和
  • Organizer: 三重大学医学研究科セミナー
  • Place of Presentation: 津
  • Year and Date: 2008-01-23
• [Presentation] Juxtacellular/multiunit recordings from head-restraint rats performing forelimb movement task. Neurosci Res 58 (suppl) : S151 (2007)
  • Author(s): Isomura Y, Harukuni R, Tanaka S, Aizawa H, Fukai T
  • Organizer: 30th annual meeting
  • Place of Presentation: Yokohama
  • Year and Date: 20070910-12
• [Presentation] A network mechanism underlying seizure-like synchronous oscillations (2007)
  • Author(s): Isomura Y
  • Organizer: Synchronous Rhythms in the Brain
  • Place of Presentation: University of British Columbia, Vancouver, Canada
  • Year and Date: 20070618-20
• [Presentation] インビボ生理実験系の新潮流 : マルチユニット記録法と傍細胞記録法 (2007)
  • Author(s): 礒村宜和
  • Organizer: 日本大学学術フロンティア推進事業平成18年度研究会
  • Place of Presentation: 東京
  • Year and Date: 2007-02-24
• [Presentation] インビボおよびインビトロ実験系における海馬ネットワーク・オシレーションの発生メカニズム (2006)
  • Author(s): 礒村宜和, 塚元葉子
  • Organizer: 平成18年度生理学研究所シナプス研究会
  • Place of Presentation: 岡崎
  • Year and Date: 20061130-1201
• [Presentation] Neocortex-hippocampus interactions via slow network oscillations. Neurosci Res 55(suppl) : S43 (2006)
  • Author(s): Isomura Y
  • Organizer: 29th annual meeting
  • Place of Presentation: Kyoto
  • Year and Date: 20060719-21
• [Book] 学習と記憶-基礎と臨床(医学書院、石塚典生編) 海馬神経回路における同期的リズム活動の発生メカニズム. Brain & Nerve 60(7) (2008)
  • Author(s): 塚元葉子, 礒村宜和
  • Total Pages: 755-762
• [Book] 脳機能研究の新展開(羊土社、狩野方伸他編) 第3章 海馬ネットワーク・オシレーションの機能と発生メカニズム (2006)
  • Author(s): 礒村宜和, 塚元葉子
  • Total Pages: 164-169
• [Remarks]
  • URL: http://nct.brain.riken.jp/isomura/
• [Patent(Industrial Property Rights)] 動物実験装置 (2007)
  • Inventor(s): 礒村宜和
  • Industrial Property Rights Holder: 独立行政法人理化学研究所
  • Industrial Property Number: 特許特願2007-042633
  • Filing Date: 2007-02-22