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Paper Abstract and Keywords
Presentation 2023-02-23 10:25
Effects of visual field on discrimination of heading from optic flow
Ryo Okada, Hiroaki Shigemasu (KUT) HIP2022-87
Abstract (in Japanese) (See Japanese page) 
(in English) In visual processing, lower visual field superiority has been reported in various studies. In the present study, we investigated whether a similar lower visual field advantage is observed in the discrimination threshold of left or right heading direction by optic flow. In Experiment 1, we examined whether the location of the focus of expansion/contraction of the optic flow in the upper or lower visual field caused a difference in the vertical eccentricity conditions. The optic flow stimuli were presented in both the upper and lower visual fields in Experiment 1, but in Experiment 2, we limited the optic flow to the upper or lower visual fields and examined the same direction discrimination thresholds as in Experiment 1. The results showed that the lower visual field was not superior in either experiment, suggesting that there is no clear upper/lower visual field difference in the discrimination sensitivity between the left and right heading directions.
Keyword (in Japanese) (See Japanese page) 
(in English) Optic Flow / Heading Perception / Lower Visual Field Superiority / , Focus of Expansion / Focus of Contraction / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 386, HIP2022-87, pp. 55-58, Feb. 2023.
Paper # HIP2022-87 
Date of Issue 2023-02-15 (HIP) 
ISSN Online edition: ISSN 2432-6380
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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)
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Conference Information
Committee HIP ITE-HI VRPSY  
Conference Date 2023-02-22 - 2023-02-23 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To HIP 
Conference Code 2023-02-HIP-HI-VRPSY 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Effects of visual field on discrimination of heading from optic flow 
Sub Title (in English)  
Keyword(1) Optic Flow  
Keyword(2) Heading Perception  
Keyword(3) Lower Visual Field Superiority  
Keyword(4) , Focus of Expansion  
Keyword(5) Focus of Contraction  
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1st Author's Name Ryo Okada  
1st Author's Affiliation Kochi University of Technology (KUT)
2nd Author's Name Hiroaki Shigemasu  
2nd Author's Affiliation Kochi University of Technology (KUT)
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Speaker Author-1 
Date Time 2023-02-23 10:25:00 
Presentation Time 25 minutes 
Registration for HIP 
Paper # HIP2022-87 
Volume (vol) vol.122 
Number (no) no.386 
Page pp.55-58 
#Pages
Date of Issue 2023-02-15 (HIP) 


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