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  1. 010 学術雑誌論文
  2. 蟻川, 謙太郎 / ARIKAWA, Kentaro
  1. 010 学術雑誌論文
  2. 木下, 充代 / KINOSHITA, Michiyo

Color discrimination at the spatial resolution limit in a swallowtail butterfly, Papilio xuthus

https://ir.soken.ac.jp/records/3327
https://ir.soken.ac.jp/records/3327
e78aefe3-25cf-4351-8ee4-7362fb69114c
名前 / ファイル ライセンス アクション
2873.full.pdf 2873.full (234.6 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2013-01-18
タイトル
タイトル Color discrimination at the spatial resolution limit in a swallowtail butterfly, Papilio xuthus
タイトル
タイトル Color discrimination at the spatial resolution limit in a swallowtail butterfly, Papilio xuthus
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
著者 TAKEUCHI, Yuichi

× TAKEUCHI, Yuichi

TAKEUCHI, Yuichi

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ARIKAWA, Kentaro

× ARIKAWA, Kentaro

ARIKAWA, Kentaro

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KINOSHITA, Michiyo

× KINOSHITA, Michiyo

KINOSHITA, Michiyo

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著者別名 木下, 充代

× 木下, 充代

木下, 充代

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内容記述タイプ Abstract
内容記述 Spatial resolution of insect compound eyes is much coarser than that of humans: a single pixel of the human visual system covers about 0.008° whereas that of diurnal insects is typically about 1.0°. Anatomically, the pixels correspond to single cone outer segments in humans and to single rhabdoms in insects. Although an outer segment and a rhabdom are equivalent organelles containing visual pigment molecules, they are strikingly different in spectral terms. The cone outer segment is the photoreceptor cell part that expresses a single type of visual pigment, and is therefore monochromatic. On the other hand, a rhabdom is composed of several photoreceptor cells with different spectral sensitivities and is therefore polychromatic. The polychromatic organization of the rhabdom suggests that insects can resolve wavelength information in a single pixel, which is an ability that humans do not have. We first trained the Japanese yellow swallowtail butterfly Papilio xuthus to feed on sucrose solution at a paper disk of certain color. We then let the trained butterflies discriminate disks of the training color and grey disks each presented in a Y-maze apparatus. Papilio correctly selected the colored disk when the visual angle was greater than 1.18° for blue, 1.53° for green or 0.96° for red: they appeared to see colors in single pixels to some extent. This ability may compensate their rather low spatial resolution.
書誌情報 Journal of Experimental Biology
en : Journal of Experimental Biology

巻 209, 号 15, p. 2873-2879, 発行日 2006-05-04
出版者
出版者 The Company of Biologists Ltd
ISSN
収録物識別子タイプ ISSN
収録物識別子 00220949
DOI
関連タイプ isIdenticalTo
識別子タイプ DOI
関連識別子 http://doi.org/10.1242/jeb.02311
関連名称 10.1242/jeb.02311
権利
権利情報 © The Company of Biologists Limited 2006
関連サイト
識別子タイプ URI
関連識別子 http://www.biologists.com/dmm/dmm_information.html#anchor_access
関連名称 Copyright
フォーマット
内容記述タイプ Other
内容記述 application/pdf
著者版フラグ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
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