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Paper Abstract and Keywords
Presentation 2025-03-06 14:25
Detection of Voluntary Attention Shifts Using Criticality and Network Analyses in EEG
Furi Oka (Tsukuba Univ.), Satoshi Shioiri (Tohoku Univ.), Ko Sakai (Tsukuba Univ.) NC2024-73
Abstract (in Japanese) (See Japanese page) 
(in English) Visual attention is the function that selects information to be processed preferentially from the vast amount of visual information, and it is broadly classified into exogenous attention and endogenous attention based on the presence or absence of external stimuli. Furthermore, endogenous attention, particularly when directed voluntarily without any external instruction, is referred to as voluntary attention. This study analyzed the EEG dynamics during voluntary attention shifts. Specifically, it examined the state changes of neural avalanches, the firing propagation and mutual information between multiple electrodes. In the brain, neural cells transmit signals through firing, and a phenomenon known as neural avalanches occurs. The distribution of the duration and magnitude of neural avalanches follows a power-law, and the change in its exponent (critical exponent) reflects changes in neural activity and information transmission. In this study, we analyzed the changes in the critical exponent of the duration and magnitude of neural avalanches expressed in EEG during voluntary attention shifts. As a result, it was found that the critical exponent significantly increased about 1 second before the attention shift. This suggests that, about 1 second before the attention shift, the firing mode changed, and meaningful information transmission occurred. Additionally, analysis of firing propagation and mutual information showed that, about 1 second before the attention shift, information transmission was temporarily enhanced, followed by suppression afterward. These results suggest that the preparation and instruction right before the attention shift are associated with significant information transmission.
Keyword (in Japanese) (See Japanese page) 
(in English) voluntary attention / EEG / critical analysis / network analysis / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 413, NC2024-73, pp. 71-72, March 2025.
Paper # NC2024-73 
Date of Issue 2025-02-26 (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 NC2024-73

Conference Information
Committee NC MBE  
Conference Date 2025-03-05 - 2025-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Brain architecture, General 
Paper Information
Registration To NC 
Conference Code 2025-03-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Detection of Voluntary Attention Shifts Using Criticality and Network Analyses in EEG 
Sub Title (in English)  
Keyword(1) voluntary attention  
Keyword(2) EEG  
Keyword(3) critical analysis  
Keyword(4) network analysis  
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1st Author's Name Furi Oka  
1st Author's Affiliation Tsukuba University (Tsukuba Univ.)
2nd Author's Name Satoshi Shioiri  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Ko Sakai  
3rd Author's Affiliation Tsukuba University (Tsukuba Univ.)
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Speaker Author-1 
Date Time 2025-03-06 14:25:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2024-73 
Volume (vol) vol.124 
Number (no) no.413 
Page pp.71-72 
#Pages 2 
Date of Issue 2025-02-26 (NC) 

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