Licht-im-Terrarium: Literaturdatenbank |
Crozier, W. J., & Wolf, E. (1939). The flicker response contour for the gecko (rod retina). Journal of General Physiology, 22, 555–566. Added by: Sarina (2009-04-16 16:14:03) |
Resource type: Journal Article BibTeX citation key: Crozier1939 View all bibliographic details |
Categories: Englisch = English Keywords: Echsen = Lizards, Flimmerwahrnehmung = Flicker Perception, Reptilien = Reptiles, Sehvermögen = Visual Perception Creators: Crozier, Wolf Collection: Journal of General Physiology |
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Abstract |
The flicker response contour for the gecko Sphaerodactylus (retina with only rods) agrees in all essential respects (intensity range, shape) with that for the turtle Pseudemys (cone retina), as determined under equivalent conditions with the same apparatus. With experimentally determined correction for the expansion of the iris at the very lowest intensities, the F - log I contour for the gecko is a simple probability integral. Its maximum F is lower than that for other animals; this means simply a smaller number of available sensory elements. The quantitative parallelism in the magnitudes of the intensities at the inflection of F - log I and the shape constants for rod and cone animals show that assumptions from comparative histological evidence concerning the properties of rods and cones in relation to visual performance may be quite misleading.
Added by: Sarina |