Single and Multiple Visual Systems in Arthropods

@article{Wald1968SingleAM,
  title={Single and Multiple Visual Systems in Arthropods},
  author={George Wald},
  journal={The Journal of General Physiology},
  year={1968},
  volume={51},
  pages={125 - 156}
}
  • George Wald
  • Published 1968 in The Journal of general physiology
Extraction of two visual pigments from crayfish eyes prompted an electrophysiological examination of the role of visual pigments in the compound eyes of six arthropods. The intact animals were used; in crayfishes isolated eyestalks also. Thresholds were measured in terms of the absolute or relative numbers of photons per flash at various wavelengths needed to evoke a constant amplitude of electroretinogram, usually 50 microv. Two species of crayfish, as well as the green crab, possess blue- and… CONTINUE READING
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