Shedding light on photosensitive behaviour in brown planaria (Dugesia Tigrina)

被引：16
作者：
Davidson, Colin [2 ]
Prados, Jose [1 ]
Gibson, Claire L. [1 ]
Young, Andrew M. J. [1 ]
Barnes, Darrel [1 ]
Sherlock, Rachel [1 ]
Hutchinson, Claire V. [1 ]
机构：
[1] Univ Leicester, Coll Med Biol Sci & Psychol, Sch Psychol, Leicester LE1 9HN, Leics, England
[2] Univ London, Div Biomed Sci, London SW17 0RE, England
来源：
PERCEPTION | 2011年 / 40卷 / 06期
基金：
英国国家替代、减少和改良动物研究中心; 英国惠康基金;
关键词：
SENSITIVITY;
D O I：
10.1068/p6949
中图分类号：
R77 [眼科学];
学科分类号：
100212 ;
摘要：
The planarian flatworm is one of the simplest animals to develop two eyecups that enable them to detect the presence and direction of light, which they typically avoid. In this study we assessed responses of planaria to different intensities of light. We found that they exhibited a graded, sigmoidal, photonegative response to light intensity. A two-octave increase in luminance (on the upward slope of the sigmoid) corresponded to a 9% increase in the speed planaria travelled to avoid light.
引用
收藏
页码：743 / 746
页数：4
相关论文
共 9 条
  • [1] Azuma K, 1999, PHOTOCHEM PHOTOBIOL, V69, P99, DOI 10.1111/j.1751-1097.1999.tb05312.x
  • [2] SPECTRAL SENSITIVITY OF PLANARIAN OCELLUS
    BROWN, HM
    ITO, H
    OGDEN, TE
    [J]. JOURNAL OF GENERAL PHYSIOLOGY, 1968, 51 (02) : 255 - &
  • [3] DASHEIFF BD, 2001, ECOTOXICOLOGY ENV SA, V53, P196
  • [4] Behavioral responses to light by headless anesthetized Drosophila melanogaster
    Egeth, Marc
    [J]. PERCEPTION, 2011, 40 (02) : 247 - 248
  • [5] CONDITIONED DISCRIMINATION IN PLANARIAN
    GRIFFARD, CD
    PEIRCE, JT
    [J]. SCIENCE, 1964, 144 (362) : 1472 - &
  • [6] Morphological and functional recovery of the planarian photosensing system during head regeneration
    Inoue, T
    Kumamoto, H
    Okamoto, K
    Umesono, Y
    Sakai, M
    Alvarado, AS
    Agata, K
    [J]. ZOOLOGICAL SCIENCE, 2004, 21 (03) : 275 - 283
  • [7] THE ABSOLUTE LIGHT-SENSITIVITY AND SPECTRAL THRESHOLD CURVE OF THE AQUATIC FLATWORM DENDROCOELUM-LACTEUM
    MARRIOTT, FHC
    [J]. JOURNAL OF PHYSIOLOGY-LONDON, 1958, 143 (02): : 369 - 379
  • [8] VARIABLES AFFECTING FREQUENCY OF RESPONSE OF PLANARIA TO LIGHT
    VANDEVENTER, JM
    RATNER, SC
    [J]. JOURNAL OF COMPARATIVE AND PHYSIOLOGICAL PSYCHOLOGY, 1964, 57 (03): : 407 - &
  • [9] Light-avoidance-mediating photoreceptors tile the Drosophila larval body wall
    Xiang, Yang
    Yuan, Quan
    Vogt, Nina
    Looger, Loren L.
    Jan, Lily Yeh
    Jan, Yuh Nung
    [J]. NATURE, 2010, 468 (7326) : 921 - U312
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