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Paper Abstract and Keywords
Presentation 2008-08-04 14:15
Short tone-bursts recover visual awareness suppressed by motion-induced blindness
Michiaki Shibata (Tohoku Univ), Yousuke Kawachi (Tohoku Univ./JPSP), Satoshi Yairi, Yukio Iwaya, Jiro Gyoba, Yo-iti Suzuki (Tohoku Univ) EA2008-50
Abstract (in Japanese) (See Japanese page) 
(in English) Static visual stimuli superimposed on moving pattern perceptually disappear (motion-induced blindness: MIB). We reported that short tone-bursts recover visual awareness suppressed by MIB. We presented a yellow square as a visual target on a moving pattern. Participants were asked to press and release an assigned key corresponding to the disappearance and the reappearance of the target. The tone-bursts (pure tone of 1.8 kHz; duration 50 ms) were presented immediately after participants’ disappearance response. These bursts were either presented on the same or the different side as the target on the screen in order to test the effects of spatial consistency across audiovisual stimulation (Experiment 1). We also varied the A-weighted sound pressure level (45 to 85 dB) to test the robustness of the recovering effect (Experiment 2). Finally we manipulated the number of tones to investigate summation effect of auditory cues (Experiment 3). The results showed that the awareness of the suppressed target was quickly recovered only after the presentation of tone-bursts of 25 dB above in contrast to the back ground noise, on the same side as the target. Furthermore, this recovering effect was independent of the number of tones. These results indicated that the visual awareness level could be spatial-selectively increased when the sound pressure was greater than a constant level.
Keyword (in Japanese) (See Japanese page) 
(in English) motion-induced blindness / visual awareness / crossmodal interaction / transient signal / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 179, EA2008-50, pp. 29-34, Aug. 2008.
Paper # EA2008-50 
Date of Issue 2008-07-28 (EA) 
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)
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Conference Information
Committee EA  
Conference Date 2008-08-04 - 2008-08-05 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EA 
Conference Code 2008-08-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Short tone-bursts recover visual awareness suppressed by motion-induced blindness 
Sub Title (in English)  
Keyword(1) motion-induced blindness  
Keyword(2) visual awareness  
Keyword(3) crossmodal interaction  
Keyword(4) transient signal  
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1st Author's Name Michiaki Shibata  
1st Author's Affiliation Tohoku University (Tohoku Univ)
2nd Author's Name Yousuke Kawachi  
2nd Author's Affiliation Tohoku University/JPSP (Tohoku Univ./JPSP)
3rd Author's Name Satoshi Yairi  
3rd Author's Affiliation Tohoku University (Tohoku Univ)
4th Author's Name Yukio Iwaya  
4th Author's Affiliation Tohoku University (Tohoku Univ)
5th Author's Name Jiro Gyoba  
5th Author's Affiliation Tohoku University (Tohoku Univ)
6th Author's Name Yo-iti Suzuki  
6th Author's Affiliation Tohoku University (Tohoku Univ)
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Speaker Author-1 
Date Time 2008-08-04 14:15:00 
Presentation Time 30 minutes 
Registration for EA 
Paper # EA2008-50 
Volume (vol) vol.108 
Number (no) no.179 
Page pp.29-34 
#Pages 6 
Date of Issue 2008-07-28 (EA) 

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