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A linear chromatic mechanism drives the pupillary response
http://hdl.handle.net/10232/21938
http://hdl.handle.net/10232/219385944c86d-6a13-45ac-8598-284593e19679
| 名前 / ファイル | ライセンス | アクション |
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Tsujimura2001Repository.pdf (157.7 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2015-02-19 | |||||
| タイトル | ||||||
| タイトル | A linear chromatic mechanism drives the pupillary response | |||||
| タイトル言語 | en | |||||
| 著者 |
辻村, 誠一
× 辻村, 誠一× Wolffsohn, J. S.× Gilmartin, B. |
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| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | pupillary response | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | accommodation respone | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | cromatic meganizm | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | cone contrast | |||||
| 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 | |||||
| 要約 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Previous studies have shown that a chromatic mechanism can drive pupil responses. The aim of this research was to clarify whether a linear or non-linear chromatic mechanism drives pupillary responses by using various colours of test stimuli defined in cone-contrast space. Pupil and accommodation responses evoked by these test stimuli were continuously and simultaneously measured objectively by photorefraction. The results with isochromatic and isoluminant stimuli showed that the accommodative level remained approximately constant (<0.25D change in mean level) even when the concurrent pupillary responses was large (~0.30mm). The pupillary response to an isoluminant grating was sustained, delayed (by ~60ms) and larger in amplitude than that for a isochromatic uniform stimulus, which supports previous work suggesting that the chromatic mechanism contributes to the pupillary response. In a second experiment, selected chromatic test gratings were utilized and iso-response contours in cone-contrast space were obtained. The results showed that the iso-response contour in cone contrast space is well described (r^2=0.99) by a straight line with a positive slope. The results indicate that a L-M linear chromatic mechanism, whereby a signal from the Long-wavelength cone (L-cone) is subtracted from that of the Middle-wavelength cone (M-cone) and vice versa, drives pupillary responses. | |||||
| 内容記述言語 | en | |||||
| 収録雑誌名 |
en : Proceedings of the Royal Society B: Biological Sciences 巻 268, 号 1482, p. 2203-2209, 発行日 2001 |
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| 作成日 | ||||||
| 日付 | 2001-11-07 | |||||
| 日付タイプ | Issued | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| ISSN | 09628452 | |||||
| NII書誌ID（雑誌） | ||||||
| 収録物識別子タイプ | NCID | |||||
| NC ID | AA11210011 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| DOI | https://doi.org/10.1098/rspb.201.1775 | |||||
| 権利 | ||||||
| 権利情報の言語 | en | |||||
| 権利情報 | (c) 2001 The Royal Society | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| 公開者・出版者 | ||||||
| 出版者 | The Royal Society | |||||
| 出版者言語 | en | |||||
| 関係 | ||||||
| 関係 | http://rspb.royalsocietypublishing.org/content/268/1482/2203 | |||||
