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Paper Abstract and Keywords
Presentation 2018-11-22 14:30
Controlling of Working Memory by Synchronization of Oscillatory Activity in Inhibitory Neurons
Kentaro Hayashida, Yasuhiro Tsubo (Ritsumeikan Univ.) NC2018-25
Abstract (in Japanese) (See Japanese page) 
(in English) Working memory (WM) is a neural storage system which retains information temporarily. Some studies have claimed that WM is realized by using time-locked spatiotemporal firing patterns (polychronous neuronal groups: PNGs). In addition, a number of experiments have shown that performance of WM tasks was correlated with alpha power in electroencephalogram. Recent numerical studies also demonstrated that phase difference of alpha-band activity between them two neuronal groups modulate information transmission efficiency between them. However, it has not been clarified how the phase difference of alpha-band activity between the neuronal groups affects formation of PNGs. In this study, we introduced a spiking neural network model composed of two mutually connected groups modulated by external alpha-band oscillatory input with phase difference in order to investigate how the phase difference of alpha oscillation modulates the PNG formation. We found that small but non-zero phase difference between the groups facilitated the formation of PNGs which span two groups in comparison with the case with no phase difference. This result indicates the phase difference of oscillatory inputs may control PNG formation. Further studies are needed in order to investigate the effect of the phase difference on the performance of WM tasks.
Keyword (in Japanese) (See Japanese page) 
(in English) polychronous neuronal group / STDP / working memory / alpha rhythm / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 322, NC2018-25, pp. 11-16, Nov. 2018.
Paper # NC2018-25 
Date of Issue 2018-11-15 (NC) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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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)
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Conference Information
Committee MBE NC  
Conference Date 2018-11-22 - 2018-11-22 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To NC 
Conference Code 2018-11-MBE-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Controlling of Working Memory by Synchronization of Oscillatory Activity in Inhibitory Neurons 
Sub Title (in English)  
Keyword(1) polychronous neuronal group  
Keyword(2) STDP  
Keyword(3) working memory  
Keyword(4) alpha rhythm  
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1st Author's Name Kentaro Hayashida  
1st Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
2nd Author's Name Yasuhiro Tsubo  
2nd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
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Speaker Author-1 
Date Time 2018-11-22 14:30:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2018-25 
Volume (vol) vol.118 
Number (no) no.322 
Page pp.11-16 
#Pages
Date of Issue 2018-11-15 (NC) 


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