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Paper Abstract and Keywords
Presentation 2021-01-22 13:55
Attentional modulation of spike synchrony in a disinihibition network model
Nobuhiko Wagatsuma, Haruka Shimomura (Toho Univ.), Sou Nobukawa (CIT) NC2020-39
Abstract (in Japanese) (See Japanese page) 
(in English) Recent computational study has reported that top-down attention mediated by feedback signals modulates the neuronal activities in visual areas via activating inhibitory neurons. In this study, we propose network model consisting excitatory Border Ownership (BO) neuron and two classes of inhibitory neurons (SOM and VIP neurons). Attention was mediated by the projection of VIP to SOM neurons, whereas visual inputs projected to both Pyr and SOM neurons. Simulations of the model were in good agreement with attentional modulation of physiological V2 neurons, which indicated that attention decreased spike synchrony between pairs of BO model neurons, independent of the increase in their firing rates due to attention. These results suggested that the behavior of two types of inhibitory neurons underlie the attentional modulation in visual cortices.
Keyword (in Japanese) (See Japanese page) 
(in English) Border-Ownership / Cortical Network Model / disinhibition / Visual Attention / Synchrony / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 331, NC2020-39, pp. 40-44, Jan. 2021.
Paper # NC2020-39 
Date of Issue 2021-01-14 (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 NC2020-39

Conference Information
Committee NC NLP  
Conference Date 2021-01-21 - 2021-01-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) NC，NLP 
Paper Information
Registration To NC 
Conference Code 2021-01-NC-NLP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Attentional modulation of spike synchrony in a disinihibition network model 
Sub Title (in English)  
Keyword(1) Border-Ownership  
Keyword(2) Cortical Network Model  
Keyword(3) disinhibition  
Keyword(4) Visual Attention  
Keyword(5) Synchrony  
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Keyword(7)  
Keyword(8)  
1st Author's Name Nobuhiko Wagatsuma  
1st Author's Affiliation Toho University (Toho Univ.)
2nd Author's Name Haruka Shimomura  
2nd Author's Affiliation Toho University (Toho Univ.)
3rd Author's Name Sou Nobukawa  
3rd Author's Affiliation Chiba Institute of Technology (CIT)
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Speaker Author-1 
Date Time 2021-01-22 13:55:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2020-39 
Volume (vol) vol.120 
Number (no) no.331 
Page pp.40-44 
#Pages 5 
Date of Issue 2021-01-14 (NC) 

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