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Functional dissection of Neuron Network by Identification Method for Non-linear Signal Processing in Informational Engineering

Research Project

Project/Area Number 04640648
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 動物発生・生理学
Research InstitutionHokkaido University

Principal Investigator

SHIMOZAWA Tateo  Hokkaido Univ., Res.Inst.Electron.Sci., Professor, 電子科学研究所, 教授 (10091464)

Co-Investigator(Kenkyū-buntansha) SHIMIZU Toshinobu  Hokkaido Univ., Res.Inst.Electron. Sci., Instructor, 電子科学研究所, 助手 (60250510)
NAGAO Takashi  Hokkaido Univ., Cent.Exper.Plants and Animals, Associate Professor, 実験生物センター, 助教授 (70113595)
BABA Yoshichika  Hokkaido Univ., Res.Inst.Electron. Sci., Instructor, 電子科学研究所, 助手 (30238232)
TAKAHATA Masakazu  Hokkaido Univ., Fac.Sci., Professor, 理学部, 教授 (10111147)
Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1993: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1992: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordsSensory neuron / Neural connection / Signal processing / Non-linearity / Wiener's analysis / Gaussian white noise / Pulse-density encoding / Hermite polynominals / ウィナー解析 / 神経回路 / 昆虫(コオロギ) / 気流感覚系 / 巨大介在神経
Research Abstract

A method for functional dissection of sensory neuron and pulse-density encoding properties revealed by the method are studied. Spike train activities of wind sensitive mechanoreceptor neurons in cricket, in response to a Gaussian white noise stimulus, have been studied by the Wiener's analysis as a non-linear signal processing system. The 2nd order wiener kernel extracted from the system was proportional to the direct product of corresponding 1st order (linear) kernels. The system is, therefore equivalent to the cascade of a static non-linear element following the linear dynamic element whose time-domain impulse response is proportional to the 1st order kernel. The static non-linear element represents a pulse frequency modulator whose probability of spike discharge depends solely on the instantaneous amplitude of its input, i.e. memoryless. The curve of spike firing probability as a function of input amplitude was expressed by an appropriate expansion with Hermite polynominals. The input of the static non-linear element is also a Gaussian process, because of linear convolution of the Gaussian white noise of the system input. The orthogonality of the Hermite polynominals under Gaussian weight permits the determination of the coefficients of the expansion, and provides a curve of the spike firing characteristics of the neuron. The coefficients were calculated from the inner product between the observed actual outputs of the system and the polynominal values of the estimated input by linear convolution with 1st order kernel. Neurophysiological properties revealed by the present method of system identification are also described.

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] 渡辺一央 他: "K-L変換用単位パーセプトロンの収束性に関する理論的考察" 電子情報通信学会論文誌. J75-D-II. 1933-1939 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Miyanaga Y.,et al.: "Neuron Architecture based on Jamming Avoidance Response of an Electric Fish." Proc.IEEE-ISCAS93-Chicago. 2600-2603 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Kobayashi W.,et al.: "The fertilization potential Provides a fast block to polyspermy in lamprey eggs." Developmental Biology. 161. 552-562 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 下澤楯夫 他: "非線形神経学" 数理科学. 363. 54-58 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Tomioka K.,et al.: "Involvement of serotonin in the circadian rhythem of an insect visual system." Naturwissenschaften. 80. 137-139 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takahata M.,et al.: "Multiple gate control of the descending statocyst-motor pathway in the crayfish procambarus clarkii Girard." Journal of Comparative Physiology. 170. 463-477 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 下澤楯夫: "日本機械学会論・生物と機械" 共立出版, 23 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] k.watanabe, T.Oohori and T.Shimozawa: "A Theoretical Study on the Convergibility of Unit perceptron for K-L Transformation." Trans.Inst.Electron. Inf.Com.Engng.J75-D-II. 1933-1939 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Miyanaga, T.Nagae, T.Shimozawa and K.Tochinai: "Neuron Archtecture based on Jamming Avoidance Response" Proc.IEEE-ISCAS93. 2600-2603 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] W.Kobayashi, Y.Baba, T.Shimozawa andT.Yamamoto: "The Fertilization Potential Provides a Fast Block To Polyspermy in Lamprey Eggs." Develop.Biol.363. 552-562 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Shimozawa, T.Shimizu and Y.Baba: "Non-linear Neurology" Suurikagaku. 363. 54-58 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Tomioka, T.Nagao, S.Tamotu, M.Ikeda: "Involvement of Serotonin in the Circadian Rhythm of an Insect Visual System." Naturwiss. 80. 137-139 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] M.Takahata and M.Murayama: "Multiple gate control of the descending statocyst-motor pathway in the crayfish Procambarus clarkii Girard." J.Comp.Physiol.170. 463-477 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Shimozawa: "Sensing system and behavior of animals" Seibututokikai, Kyourits Shuppan. 89-111 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 渡辺一央 他: "K-L変換用単位パーセプトロンの収束性に関する理論的考察" 電子情報通信学会論文誌. J75-D-II. 1933-1939 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] Miyanaga Y.,et al.: "Neuron Architecture based on Jamming Avoidance Response of an Electric Fish." Proc.IEEE-ISCAS93-Chicago. 2600-2603 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Kobayashi W.,et al.: "The fertilization potential provides a fast block to polyspermy in lamprey eggs." Developmental Biology. 161. 552-562 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] 下澤楯夫 他: "非線形神経学" 数理科学. 363. 54-58 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Tomioka K.,et al.: "Involvement of serotonin in the circadian rhythem of an insect visual system." Naturwissenschaften. 80. 137-139 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Takahata M.,et al.: "Multiple gate control of the descending statocyst-motor pathway in the crayfish Procambarus clarkii Girard." Journal of Comparative Physiology. 170. 463-477 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] 下澤楯夫: "日本機械学会編・生物と機械" 共立出版, 23 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] 渡辺 一央、下澤 楯夫 大堀 隆文: "KL変換用単位パーセプトロンの収束性に関する理論的考察" 電子情報通信学会論文誌D-2. J75-D-II. 1933-1939 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Shimozawa T.Baba Y.Shimizu T.: "Nonlinear Analysis of cercal sensory pathway." Zool.Science. 9. 1241- (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Baba Y. Shimizu T. Shimozawa T.: "Input pathway of cricket non spiking interneurons." Zool Science. 9. 1242- (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 下澤 楯夫: "昆虫の音感覚" 日本音響学会誌. 49. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 下澤 楯夫(分担): "生物と機械(日本機械学会編)" 共立出版社, 166 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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