Spike-field coherence analysis of mnemonic signal between associative-memory-related subregions in macaque inferotemporal cortex.

2010 Fiscal Year Final Research Report

• Project/Area Number: 21700342
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Neuroscience in general
• Research Institution: The University of Tokyo
• Principal Investigator: TAKEDA Masaki The University of Tokyo, 大学院・医学系研究科, 助教 (00418659)
• Project Period (FY): 2009 – 2010
• Keywords: 神経科学 / 脳・神経 / 大脳生理学 / 視覚記憶

Research Abstract

I recorded simultaneously the single unit activity from are 36 and the local field potential from area TE of monkey inferior temporal cortex when the monkey performed visual memory task and then analyzed the mnemonic information between these areas. Coherence analysis in a frequency domain reveals that there was a coherent activity in beta frequency during the delay period. This beta coherent activity was selective to the cue stimulus. Causality analysis of the local field potential between area 36 and area TE showed that, during the delay period, mnemonic signal in beta frequency flows from area 36 to area TE.

Research Products

• [Journal Article] In vivo visualization of single-unit recording sites using MRI-detectable elgiloy deposit marking. (2011)
  • Author(s): Koyano, K.W., Machino, A., Takeda, M., Matsui, T., Fujimichi, R., Ohashi, Y., Miyashita, Y.
  • Journal Title: Journal of Neurophysiology Vol 105 Pages: 1380-1392
  • Peer Reviewed
• [Journal Article] Unitized representation of paired objects in area 35 of the macaque perirhinal cortex. (2010)
  • Author(s): Fujimichi, R., Naya, Y., Koyano, K.W., Takeda, M., Takeuchi, D., Miyashita, Y.
  • Journal Title: European Journal of Neuroscience Vol 32 Pages: 659-667
  • Peer Reviewed
• [Journal Article] In vivo reconstruction of recorded neuron positions on magnetic resonance images using elgiloy metal deposit markers. (2010)
  • Author(s): Koyano, K.W., Machino, A., Takeda, M., Matsui, T., Fujimichi, R., Ohashi, Y., Miyashita, Y.
  • Journal Title: 2010 Neuroscience Meeting Planner. San-Diego, : Society for Neuroscience No.817.7
  • Peer Reviewed
• [Journal Article] Characterization of neuronal activities in area 35 of macaque perirhinal cortex during pair association task. (2009)
  • Author(s): Fujimichi, R., Takeda, M., Naya, Y., Koyano, K.W., Takeuchi, D., Miyashita, Y.
  • Journal Title: The Journal of Physiological Sciences Vol 59, Suppl 1 Pages: 506
  • Peer Reviewed
• [Journal Article] Neuronal representation of stimulus-stimulus associations in area 35 of macaque perirhinal cortex. (2009)
  • Author(s): Fujimichi, R., Takeda, M., Naya, Y., Koyano, K.W., Takeuchi, D., Miyashita, Y.
  • Journal Title: 2009 Neuroscience Meeting Planner.Shicago, : Society for Neuroscience No.98.5.
  • Peer Reviewed
• [Journal Article] Metal deposit mark of elgiloy electrode is detectable using high-field MRI : an in vivo method to localize the recording sites. (2009)
  • Author(s): Koyano, K.W., Matsui, T., Machino, A., Takeda, M., Fujimichi, R., Ohashi, Y., Miyashita, Y.
  • Journal Title: The Journal of Physiological Sciences Vol 59, Suppl 1 Pages: 528
  • Peer Reviewed
• [Presentation] MRI-based mapping of neuronal activities within the primate cerebral cortex : an approach to elucidating information processing within the cortical laminar structure. (2010)
  • Author(s): Koyano KW, Machino A, Takeda M, Matsui T, Fujimichi R, Ohashi Y, Miyashita Y.
  • Organizer: グローバルCOEプログラム「生体シグナルを基盤とする統合生命学」第4回国際シンポジウム
  • Place of Presentation: 八ヶ岳ロイヤルホテル(山梨県)
  • Year and Date: 2010-03-05