Paper Abstract and Keywords |
Presentation |
2014-03-17 15:40
Temporal relationship between object category representation and the level of category abstraction in the human visual cortex Masashi Sato, Yoichi Miyawaki (UEC) NC2013-128 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Object categories can be hierarchically ordered from abstract to concrete levels. Previous studies showed that the correspond-ing hierarchy can be found in spatial patterns of human brain activity. However, it remains unclear when each object category is represented in human brain activity patterns and whether it is also ordered in a hierarchical manner in the time domain ac-cording to the level of category abstraction. In this study, we measured human brain activity patterns in high temporal resolu-tion using magnetoencephalography (MEG) while subjects observed object images selected from multiple categories. We es-timated cortical current distributions and then applied multivariate pattern analyses to estimate the timings at which each ob-ject category is represented in brain activity patterns. Our present results showed no significant difference in latency of object category representation along the level of category abstraction, suggesting possibility that object category information is rep-resented at similar latency in the human brain irrespective of their levels of abstraction. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Object vision / Object category / Level of category abstraction / Magnetoencephalography / Multivariate pattern analysis / / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 500, NC2013-128, pp. 227-232, March 2014. |
Paper # |
NC2013-128 |
Date of Issue |
2014-03-10 (NC) |
ISSN |
Print edition: ISSN 0913-5685 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) |
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NC2013-128 |
Conference Information |
Committee |
NC MBE |
Conference Date |
2014-03-17 - 2014-03-18 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tamagawa University |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
NC |
Conference Code |
2014-03-NC-MBE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Temporal relationship between object category representation and the level of category abstraction in the human visual cortex |
Sub Title (in English) |
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Keyword(1) |
Object vision |
Keyword(2) |
Object category |
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Level of category abstraction |
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Magnetoencephalography |
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Multivariate pattern analysis |
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1st Author's Name |
Masashi Sato |
1st Author's Affiliation |
The University of Electro-Communications (UEC) |
2nd Author's Name |
Yoichi Miyawaki |
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The University of Electro-Communications (UEC) |
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Speaker |
Author-1 |
Date Time |
2014-03-17 15:40:00 |
Presentation Time |
20 minutes |
Registration for |
NC |
Paper # |
NC2013-128 |
Volume (vol) |
vol.113 |
Number (no) |
no.500 |
Page |
pp.227-232 |
#Pages |
6 |
Date of Issue |
2014-03-10 (NC) |