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Paper Abstract and Keywords
Presentation 2015-03-16 15:10
Study on temporal brain activity of motor imagery in mental rotation task
Hiroshi Yokoyama, Isao Nambu (Nagaoka Univ. of Tech.), Jun Izawa (Univ. of Tsukuba), Yasuhiro Wada (Nagaoka Univ. of Tech.) MBE2014-149 NC2014-100
Abstract (in Japanese) (See Japanese page) 
(in English) The evoked brain activity during a mental hand rotation task is widely known related to motor imagery. Task-related activity during the task has been observed two brain areas, parietal and motor area. On the other hand, the relation to the functional brain activity between parietal and motor area is not well known. We then assumed that the two areas have the functional connectivity similar to that during a hand-choice task, and the mental hand rotation task was conducted in fourteen healthy subjects to investigate the evoked activity during motor imagery. In analysis, we mainly considered the effects in history of presented stimuli such as whether the stimulus is same (repeat trial) or different (switch trial) against previous trial. When we analyzed the functional connectivity based on phase synchronization, the parieto-motor connections were found during the task, and this connection had laterality-shift between right and left hemispheres in the switch trial. This suggests that the parietal area engaged to select the imagined hand.
Keyword (in Japanese) (See Japanese page) 
(in English) EEG / motor imagery / phase synchronization / functional connectivity / graph theory / mental hand rotation task / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 515, NC2014-100, pp. 183-188, March 2015.
Paper # NC2014-100 
Date of Issue 2015-03-09 (MBE, NC) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 MBE2014-149 NC2014-100

Conference Information
Committee NC MBE  
Conference Date 2015-03-16 - 2015-03-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Tamagawa University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ME, etc 
Paper Information
Registration To NC 
Conference Code 2015-03-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on temporal brain activity of motor imagery in mental rotation task 
Sub Title (in English)  
Keyword(1) EEG  
Keyword(2) motor imagery  
Keyword(3) phase synchronization  
Keyword(4) functional connectivity  
Keyword(5) graph theory  
Keyword(6) mental hand rotation task  
Keyword(7)  
Keyword(8)  
1st Author's Name Hiroshi Yokoyama  
1st Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
2nd Author's Name Isao Nambu  
2nd Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
3rd Author's Name Jun Izawa  
3rd Author's Affiliation University of Tsukuba (Univ. of Tsukuba)
4th Author's Name Yasuhiro Wada  
4th Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
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Speaker Author-1 
Date Time 2015-03-16 15:10:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # MBE2014-149, NC2014-100 
Volume (vol) vol.114 
Number (no) no.514(MBE), no.515(NC) 
Page pp.183-188 
#Pages 6 
Date of Issue 2015-03-09 (MBE, NC) 

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