Development of multi-channel optical measuring system and its application

  • Nishimuta Terumitsu
    Department of Electrical Engineering & Computer Science,Faculty of Engineering,Kumamoto
  • Nishikido Ryouji
    Department of Electrical Engineering & Computer Science,Faculty of Engineering,Kumamoto
  • Murayama Nobuki
    Department of Electrical Engineering & Computer Science,Faculty of Engineering,Kumamoto
  • Ito Shinichi
    Department of Physiology,Faculty of Medicine,Kumamoto University

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Other Title
  • 多点光学測定システムの試作とその適用

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To understand the function of neurons,a microelectrode method has traditionally been used.However,this method is difficult to grasp dynamically the activities of neural networks.Recently an optical measuring method which can measure the dynamic flow of neuronal excitations has been focused.Therefore,we have deviced a multi-channel optical measuring system which used 25 photodiodes. Using this system,we tried to measure,in vivo,the activities of neurons in the somatosensory area of the rat′s cortex,and to inves tigate the somatotopic representation in the area.

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