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Paper Abstract and Keywords
Presentation 2011-06-24 09:00
Mechanisms of target selection underlying saccades and smooth pursuit eye movements
Kenichiro Miura, Yusuke, Sakato, Kenji Kawano, Tadashi Ogawa (Kyoto Univ.) NC2011-5
Abstract (in Japanese) (See Japanese page) 
(in English) Two eye movements are involved in the ocular tracking of a moving visual target. One is a fast and ballistic eye movement, referred to as saccade, which brings the retinal image of the visual target onto the fovea, and another is a slow and smooth eye movement, referred to as smooth pursuit, which keeps the retinal image of the target on the fovea. In usual circumstances, these two different eye movements work cooperatively to look at a single visual object chosen by the neural circuitries for target selection. However, the mechanisms underlying the cooperative behaviors have been unclear. The central question is whether a single neural circuitry dominates the target selection for two eye movement systems or not. In this study, we studied ocular tracking behaviors of four human subjects by using two kinds of visual search tasks of different difficulties for target selection (w/wo the assistance of bottom-up cue). We obtained the following findings: (1) the target selection for smooth pursuit was, in general, successfully carried out irrespective of presence/absence of saccades: (2) the target selection for smooth pursuit was more influenced by bottom-up cues compared with the target selection for saccade: (3) two eye movements could have different targets. We conclude that the systems for saccade and smooth pursuit have their own, different neural circuitries for their target selections.
Keyword (in Japanese) (See Japanese page) 
(in English) visual search / eye movement / attention / vision / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 96, NC2011-5, pp. 61-66, June 2011.
Paper # NC2011-5 
Date of Issue 2011-06-16 (NC) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF NC2011-5

Conference Information
Committee NC IPSJ-BIO  
Conference Date 2011-06-23 - 2011-06-24 
Place (in Japanese) (See Japanese page) 
Place (in English) 50th Anniversary Memorial Hall, University of the Ryukyus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Machine Learning Approach to Biodata Mining, and General 
Paper Information
Registration To NC 
Conference Code 2011-06-NC-BIO 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Mechanisms of target selection underlying saccades and smooth pursuit eye movements 
Sub Title (in English)  
Keyword(1) visual search  
Keyword(2) eye movement  
Keyword(3) attention  
Keyword(4) vision  
1st Author's Name Kenichiro Miura  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Yusuke, Sakato  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Kenji Kawano  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Tadashi Ogawa  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
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Date Time 2011-06-24 09:00:00 
Presentation Time 25 
Registration for NC 
Paper # IEICE-NC2011-5 
Volume (vol) IEICE-111 
Number (no) no.96 
Page pp.61-66 
#Pages IEICE-6 
Date of Issue IEICE-NC-2011-06-16 

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