Presentation 2011-12-20
Estimation of the Neural Circuit for the Command Generation in an Insect Brain
Ikuko NISHIKAWA, Takayuki ONOJIMA, Tomoki KAZAWA, Shigehiro NAMIKI, Hidetoshi IKENO, Ryohei KANZAKI,
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Abstract(in English) We report an approach to estimate the functional connection from the possible anatomical connections and physiological response of each neuron. Here we focus on the brain of Bombyx mori, a male silkmoth, which exhibits a programmed behavior for the pheromone orientation on a pheromone detection. The neuroethological experiments revealed that the motor command is generated in the premotor center, composed of the lateral accessory lobe (LAL) and the ventral protocerebrum (VPC). The morphology and the physiological response to the pheromone stimulus are obtained for each main type of LAL-VPC neuron through the intensive electro-physiological and immunohistochemical experiments. However, how the motor command is generated in LAL-VPC, or the information pathway in the network, is still unknown. That is, each piece of puzzle is fairly well investigated, though they are not yet fit in to reveal the whole picture. The goal of our present study is to investigate the functional connection in LAL-VPC to elucidate the mechanism of the motor command generation for the programmed behavior. The present approach is to consider an artificial three-layered neural network to solve an optimization problem based on the above findings of LAL-VPC neuron as the constraints. The optimal solution is the connection which reproduces the observed response best, and we search it through the learning of the artificial neural network. Then, the obtained connection is evaluated by a simulation of LAL-VPC network to reproduce the network dynamics.
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Keyword(in English) Functional Connection / Insect Brain / Premotor Center / Estimation / Optimization / Odor Source Orientation
Paper # NC2011-95
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Conference Information
Committee NC
Conference Date 2011/12/13(1days)
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Paper Information
Registration To Neurocomputing (NC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Estimation of the Neural Circuit for the Command Generation in an Insect Brain
Sub Title (in English)
Keyword(1) Functional Connection
Keyword(2) Insect Brain
Keyword(3) Premotor Center
Keyword(4) Estimation
Keyword(5) Optimization
Keyword(6) Odor Source Orientation
1st Author's Name Ikuko NISHIKAWA
1st Author's Affiliation College of Information Science and Engineering, Ritsumeikan University()
2nd Author's Name Takayuki ONOJIMA
2nd Author's Affiliation College of Information Science and Engineering, Ritsumeikan University
3rd Author's Name Tomoki KAZAWA
3rd Author's Affiliation Research Center for Advanced Science and Technology, the University of Tokyo
4th Author's Name Shigehiro NAMIKI
4th Author's Affiliation Research Center for Advanced Science and Technology, the University of Tokyo
5th Author's Name Hidetoshi IKENO
5th Author's Affiliation School of Human Science and Environment, University of Hyogo
6th Author's Name Ryohei KANZAKI
6th Author's Affiliation Research Center for Advanced Science and Technology, the University of Tokyo
Date 2011-12-20
Paper # NC2011-95
Volume (vol) vol.111
Number (no) 368
Page pp.pp.-
#Pages 4
Date of Issue