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Paper Abstract and Keywords
Presentation 2013-05-27 13:00
Laterality of Gamma-Oscillations in Monkey Medial Motor Cortex
Ryosuke Hosaka (Fukuoka Univ.), Toshi Nakajima (Tohoku Univ.), Kazuyuki Aihara (Univ. of Tokyo), Yoko Yamaguchi (RIKEN), Hajime Mushiake (Tohoku Univ.) NLP2013-9
Abstract (in Japanese) (See Japanese page) 
(in English) While the medial motor areas are crucially involved in temporal organization of multiple movements in a flexible manner,
it is poorly understood the contribution of the oscillatory local field potentials (LFPs) to the renewal process of multiple motor plans.
Here we investigate modulations of the beta and gamma oscillation in the renewal process of the sequential movements in the supplementary motor area (SMA) and pre-SMA.
We trained two Japanese monkeys to perform a motor task
in which they were required to execute a series of movements based on memory of motor sequence and update memorized sequence by visual instructions.
We found the transient dominance of the gamma power over the beta power while visual instructions were delivered at the first trial for updating a motor plan during delay periods.
This complementary change of oscillatory activity was not simply related to occurrences of any sensory signals or premature execution of movement.
The gamma power attenuated and the beta power gradually enhanced during the delay periods for the same visual instructions after the first trial of updating motor plans.
We then examined if the power of gamma oscillations changed in relation to the instructed arm use (i.e., left or right arm).
We found that the oscillatory power in high-gamma range (80-200 Hz) in visually-guided 1st trial was modulated in relation to the instructed arm use.
end{eabstract}
Keyword (in Japanese) (See Japanese page) 
(in English) LFP / Local Field Potential / beta oscillation / gamma oscillation / Supplementary motor area / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 69, NLP2013-9, pp. 1-5, May 2013.
Paper # NLP2013-9 
Date of Issue 2013-05-20 (NLP) 
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)
Download PDF NLP2013-9

Conference Information
Committee NLP  
Conference Date 2013-05-27 - 2013-05-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Event hall, Central Library, Fukuoka University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To NLP 
Conference Code 2013-05-NLP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Laterality of Gamma-Oscillations in Monkey Medial Motor Cortex 
Sub Title (in English)  
Keyword(1) LFP  
Keyword(2) Local Field Potential  
Keyword(3) beta oscillation  
Keyword(4) gamma oscillation  
Keyword(5) Supplementary motor area  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Ryosuke Hosaka  
1st Author's Affiliation Fukuoka University (Fukuoka Univ.)
2nd Author's Name Toshi Nakajima  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Kazuyuki Aihara  
3rd Author's Affiliation The University of Tokyo (Univ. of Tokyo)
4th Author's Name Yoko Yamaguchi  
4th Author's Affiliation RIKEN (RIKEN)
5th Author's Name Hajime Mushiake  
5th Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2013-05-27 13:00:00 
Presentation Time 25 minutes 
Registration for NLP 
Paper # NLP2013-9 
Volume (vol) vol.113 
Number (no) no.69 
Page pp.1-5 
#Pages 5 
Date of Issue 2013-05-20 (NLP) 

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