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Paper Abstract and Keywords
Presentation 2010-07-27 09:30
Information retention capacity during delay period implicitly reflected in temporal correlations of spontaneous neuronal activity
Satoshi Nishida, Tomohiro Tanaka (Kyoto Univ.), Tomohiro Shibata, Kazushi Ikeda (NAIST), Tadashi Ogawa (Kyoto Univ.) NC2010-29
Abstract (in Japanese) (See Japanese page) 
(in English) Most of cognitive neuroscience studies have focused not on the spontaneous neural activity but task-related activity. However, recent evidence demonstrated that spontaneous fluctuations in neuronal activity reflect intrinsic functional architecture of the brain. In the present study, we examined the temporal storage capacity of posterior parietal neurons by calculating the temporal correlation of the spontaneous activity during the fixation period of a visually-guided saccade task. We also examined the information retention capacity of the same neurons for representation of the target position by analyzing the activity during the delay period of a memory-guided saccade task. We found a correlation between these two capacities. Thus, it is suggested that the neuronal behavior for information retention under a task constraint can be explained by the intrinsic storage capacity of the neuron.
Keyword (in Japanese) (See Japanese page) 
(in English) spontaneous activity / temporal storage capacity / delay-period activity / lateral intraparietal area / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 149, NC2010-29, pp. 1-6, July 2010.
Paper # NC2010-29 
Date of Issue 2010-07-20 (NC) 
ISSN Print edition: ISSN 0913-5685    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)
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Conference Information
Committee NC  
Conference Date 2010-07-27 - 2010-07-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Recording and analysis of neuronal activity, etc 
Paper Information
Registration To NC 
Conference Code 2010-07-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Information retention capacity during delay period implicitly reflected in temporal correlations of spontaneous neuronal activity 
Sub Title (in English)  
Keyword(1) spontaneous activity  
Keyword(2) temporal storage capacity  
Keyword(3) delay-period activity  
Keyword(4) lateral intraparietal area  
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1st Author's Name Satoshi Nishida  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Tomohiro Tanaka  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Tomohiro Shibata  
3rd Author's Affiliation Nara Institute of Science and Technology (NAIST)
4th Author's Name Kazushi Ikeda  
4th Author's Affiliation Nara Institute of Science and Technology (NAIST)
5th Author's Name Tadashi Ogawa  
5th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2010-07-27 09:30:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2010-29 
Volume (vol) vol.110 
Number (no) no.149 
Page pp.1-6 
#Pages 6 
Date of Issue 2010-07-20 (NC) 

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