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Paper Abstract and Keywords
Presentation 2022-09-29 10:00
Fabrication of artificial neuronal networks for analyzing neuronal ensemble functions
Hakuba Murota, Hideaki Yamamoto, Takuma Sumi, Shigeo Sato, Ayumi Hirano (Tohoku Univ.) NC2022-32
Abstract (in Japanese) (See Japanese page) 
(in English) In this study, we applied cell patterning technology using polydimethylsiloxane microfluidics to fabricate artificial neuronal networks with modular connectivity, a network topology that characterizes the mammalian cortex. Spontaneous activity of the artificial neuronal networks was recorded by fluorescence calcium imaging, and various neuronal ensemble activities were observed. Evaluation of network activity by correlation coefficients revealed that the modular patterning reduced synchrony between distant neuronal populations. Furthermore, using optogenetics technology to apply local stimulation to the artificial neuronal network, we found that evoked activity tended to be confined to the cell population at and near the point of the stimulation. These results suggest that this experimental system is useful for the functional characterization of neuronal ensembles in vitro.
Keyword (in Japanese) (See Japanese page) 
(in English) Cultured Neuronal Network / Cell Patterning / Neuronal Ensembles / Optogenetics / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 195, NC2022-32, pp. 1-4, Sept. 2022.
Paper # NC2022-32 
Date of Issue 2022-09-22 (NC) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF NC2022-32

Conference Information
Committee NC MBE  
Conference Date 2022-09-29 - 2022-09-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Brain Architecture, NC, ME 
Paper Information
Registration To NC 
Conference Code 2022-09-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fabrication of artificial neuronal networks for analyzing neuronal ensemble functions 
Sub Title (in English)  
Keyword(1) Cultured Neuronal Network  
Keyword(2) Cell Patterning  
Keyword(3) Neuronal Ensembles  
Keyword(4) Optogenetics  
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1st Author's Name Hakuba Murota  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Hideaki Yamamoto  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Takuma Sumi  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Shigeo Sato  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
5th Author's Name Ayumi Hirano  
5th Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2022-09-29 10:00:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2022-32 
Volume (vol) vol.122 
Number (no) no.195 
Page pp.1-4 
#Pages 4 
Date of Issue 2022-09-22 (NC) 

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