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Paper Abstract and Keywords
Presentation 2024-03-12 12:05
Exploring Motor Memory Structure for Hand Reaching from the Viewpoint of Segregation and Integration
Akari Ogawa, Naotoshi Abekawa, Hiroaki Gomi (NTT) NC2023-55
Abstract (in Japanese) (See Japanese page) 
(in English) Two opposing motor skills, which normally prevent learning due to a memory interference, can be acquired when each is associated with the external-world or body states (context-dependent motor learning). While much research has intensively examined what states can reduce the interference, it has remained unclear how multiple memories acquired simultaneously relate to each other. Here we focused on the segregation and integration of multiple memories, and examined such structure using the visuomotor rotation paradigm. In the experiment, arm-reaching movements were classified into four trial-types with respect to the spatial combination of visual targets and gaze positions. Participants experienced opposing rotational perturbations (CW or CCW) on each trial-type. After learning, we de-adapted only one trial type, and subsequently examined the effect of this de-adaptation on the remaining other trial types. In this task design, if de-adaptation of one memory leads to de-adaptation of the other memory, these two memories are considered to be linked. Preliminary experiments revealed relatively complex patterns of memory structure, contrary to expectations based on task-optimal strategies.
Keyword (in Japanese) (See Japanese page) 
(in English) sensorimotor control / eye-hand coordination / implicit memory / human psychophysical experiments / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 418, NC2023-55, pp. 69-74, March 2024.
Paper # NC2023-55 
Date of Issue 2024-03-04 (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 NC2023-55

Conference Information
Committee NC MBE  
Conference Date 2024-03-11 - 2024-03-12 
Place (in Japanese) (See Japanese page) 
Place (in English) The Univ. of Tokyo 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Brain architecture, General 
Paper Information
Registration To NC 
Conference Code 2024-03-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Exploring Motor Memory Structure for Hand Reaching from the Viewpoint of Segregation and Integration 
Sub Title (in English)  
Keyword(1) sensorimotor control  
Keyword(2) eye-hand coordination  
Keyword(3) implicit memory  
Keyword(4) human psychophysical experiments  
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Keyword(6)  
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1st Author's Name Akari Ogawa  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Naotoshi Abekawa  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Hiroaki Gomi  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2024-03-12 12:05:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2023-55 
Volume (vol) vol.123 
Number (no) no.418 
Page pp.69-74 
#Pages 6 
Date of Issue 2024-03-04 (NC) 

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