Paper Abstract and Keywords |
Presentation |
2008-03-13 11:30
Effects of lesions of the isthmo-optic nucleus on visual search Takahiro Fukunaga, Ryuichi Yamaguchi, Ryota Tsugami, Hiroshi Ohno, Hiroyuki Uchiyama (Kagoshima Univ.) MBE2007-111 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The avian isthmo-optic system is hypothesized to be involved in attentional control of retinal output. In the present study, we lesioned the isthmo-optic nucleus (ION) in order to investigate contribution of the ION to visual search. Japanese quails were trained to perform visual search tasks, in which the animals search a target stimulus among distracter stimuli. Before and after the lesions of the ION, response times (RTs) to the target stimulus and success rates (SRs) of search were compared. In all three animals with complete and near-complete lesions of the ION, postlesion RTs were longer than prelesion RTs. Also, SRs were decreased by the lesions in two animals out of the three animals, particularly in the peripheral visual field. Thus the isthmo-optic system is shown to be involved in improvement of visual search extending to the peripheral visual field. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Retina / Centrifugal projection / Isthmo-optic nucleus / Selective attention / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, no. 541, MBE2007-111, pp. 25-28, March 2008. |
Paper # |
MBE2007-111 |
Date of Issue |
2008-03-06 (MBE) |
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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MBE2007-111 |
Conference Information |
Committee |
NC MBE |
Conference Date |
2008-03-12 - 2008-03-14 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tamagawa Univ |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
MBE |
Conference Code |
2008-03-NC-MBE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Effects of lesions of the isthmo-optic nucleus on visual search |
Sub Title (in English) |
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Keyword(1) |
Retina |
Keyword(2) |
Centrifugal projection |
Keyword(3) |
Isthmo-optic nucleus |
Keyword(4) |
Selective attention |
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1st Author's Name |
Takahiro Fukunaga |
1st Author's Affiliation |
Kagoshima University (Kagoshima Univ.) |
2nd Author's Name |
Ryuichi Yamaguchi |
2nd Author's Affiliation |
Kagoshima University (Kagoshima Univ.) |
3rd Author's Name |
Ryota Tsugami |
3rd Author's Affiliation |
Kagoshima University (Kagoshima Univ.) |
4th Author's Name |
Hiroshi Ohno |
4th Author's Affiliation |
Kagoshima University (Kagoshima Univ.) |
5th Author's Name |
Hiroyuki Uchiyama |
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Kagoshima University (Kagoshima Univ.) |
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Speaker |
Author-1 |
Date Time |
2008-03-13 11:30:00 |
Presentation Time |
20 minutes |
Registration for |
MBE |
Paper # |
MBE2007-111 |
Volume (vol) |
vol.107 |
Number (no) |
no.541 |
Page |
pp.25-28 |
#Pages |
4 |
Date of Issue |
2008-03-06 (MBE) |
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