Paper Abstract and Keywords |
Presentation |
2006-03-15 13:00
Activity patterns of the isthmo-optic neurons and their relations with head movements in head-unrestrained quails Hiroshi Ohno, Osamu Setoyama, Hiroyuki Uchiyama (Kagoshima Univ.) |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Retinopetal neurons in the isthmo-optic nucleus (ION) send their axons to the contralateral retina in birds. The centrifugal visual projection is thought to be involved in attentional modulation of retinal output. We recorded activity of neurons in the ION in awake, head-unrestrained Japanese quails using an implanted electrode assembly. Head movements were videotaped with a high-speed video camera (100fps). We found two distinct types of activity pattern: phasic and tonic. The majority of neurons in the ION discharge in a phasic manner. Phasic and tonic cells are also different one from another in relation to head movements. Phasic cells show phasic elevation of activity about 50ms before head movements to its receptive field direction, while tonic cells show tonic suppression during head movements. We will discuss the activity profiles of neurons in the ION in terms of their possible role in visually guided behaviors. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Retina / Centrifugal projection / Isthmo-optic nucleus / Selective attention / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 105, no. 657, NC2005-108, pp. 15-19, March 2006. |
Paper # |
NC2005-108 |
Date of Issue |
2006-03-08 (NC) |
ISSN |
Print edition: ISSN 0913-5685 |
Download PDF |
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Conference Information |
Committee |
NC |
Conference Date |
2006-03-15 - 2006-03-17 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tamagawa University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
General |
Paper Information |
Registration To |
NC |
Conference Code |
2006-03-NC |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
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(See Japanese page) |
Title (in English) |
Activity patterns of the isthmo-optic neurons and their relations with head movements in head-unrestrained quails |
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 |
Hiroshi Ohno |
1st Author's Affiliation |
Kagoshima University (Kagoshima Univ.) |
2nd Author's Name |
Osamu Setoyama |
2nd Author's Affiliation |
Kagoshima University (Kagoshima Univ.) |
3rd Author's Name |
Hiroyuki Uchiyama |
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Kagoshima University (Kagoshima Univ.) |
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Speaker |
Author-1 |
Date Time |
2006-03-15 13:00:00 |
Presentation Time |
25 minutes |
Registration for |
NC |
Paper # |
NC2005-108 |
Volume (vol) |
vol.105 |
Number (no) |
no.657 |
Page |
pp.15-19 |
#Pages |
5 |
Date of Issue |
2006-03-08 (NC) |