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Paper Abstract and Keywords
Presentation 2010-03-10 11:30
Adaptive control of a direct current motor via cerebellar brain-machine interface.
Kazuma Katagiri, Yoshiyuki Tanaka, Yutaka Hirata (Chubu Univ.) NC2009-121
Abstract (in Japanese) (See Japanese page) 
(in English) The cerebellum has been implicated to form an inverse dynamic model of a control object. Purkinje cells (PCs), the sole output cell type of the cerebellum, are thought to encode motor commands for their control object that are conformed by cerebellar synaptic plasticity to minimize errors in motor performance. Thus a question arises: Can the PCs that control a biological motor system, such as the eyes, acquire appropriate motor commands to drive a non-biological motor system, such as a direct current (DC) motor? We utilized a vestibulo-ocular reflex (VOR) motor learning scheme. Single unit recording of vestibulo-cerebellar PC's was conducted in goldfish. The desired trajectory of a DC motor was given to the fish in the form of head rotation. The PC firing rate modulated by the vestibular stimulus was converted into a pulse width modulation signal in real time to drive the DC motor. The produced DC motor trajectory was subtracted from the desired trajectory to calculate a performance error. The error signal was fed-back onto the goldfish retina as whole-field visual image motion. This activates VOR motor learning, and lets us evaluate if the PC under recording can improve the performance of the DC motor. The performance error of the DC motor under the VOR motor learning scheme was reduced adaptively. The result suggests that the cerebellum can acquire an internal model of a non-biological motor system, and a single PC is capable of adaptive motor control.
Keyword (in Japanese) (See Japanese page) 
(in English) Motor learning / Vestibulo-ocular reflex / Goldfish / / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 461, NC2009-121, pp. 197-200, March 2010.
Paper # NC2009-121 
Date of Issue 2010-03-02 (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 NC2009-121

Conference Information
Committee NC MBE  
Conference Date 2010-03-09 - 2010-03-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Tamagawa University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To NC 
Conference Code 2010-03-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Adaptive control of a direct current motor via cerebellar brain-machine interface. 
Sub Title (in English)  
Keyword(1) Motor learning  
Keyword(2) Vestibulo-ocular reflex  
Keyword(3) Goldfish  
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1st Author's Name Kazuma Katagiri  
1st Author's Affiliation Chubu University (Chubu Univ.)
2nd Author's Name Yoshiyuki Tanaka  
2nd Author's Affiliation Chubu University (Chubu Univ.)
3rd Author's Name Yutaka Hirata  
3rd Author's Affiliation Chubu University (Chubu Univ.)
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Speaker Author-2 
Date Time 2010-03-10 11:30:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2009-121 
Volume (vol) vol.109 
Number (no) no.461 
Page pp.197-200 
#Pages
Date of Issue 2010-03-02 (NC) 


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