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Extraocular photoreceptors can entrain the circadian rhythm in the abdominal ganglion ofAplysia

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Summary

The circadian rhythm in the frequency of spikes recorded from neuron R15 in the isolated abdominal ganglion ofAplysia can be entrained by a lightcycle after the animal's eyes have been removed. Control experiments rule out the possibilities that eyeless entrainment could be due to non-photic time signals impinging on the intact animal or direct action of stimuli impinging on the isolated ganglion.

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Authors and Affiliations

  1. Department of Psychology, University of Oregon, 97403, Eugene, Oregon

    Marvin E. Lickey & Sheldon Zack

Authors
  1. Marvin E. Lickey
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  2. Sheldon Zack
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Additional information

Supported by PHS Grant NS 07458 to M.E.L., PHS Predoctoral Fellowship MH 3435 to S.Z. and PHS HSAA RR 06027 to the University of Oregon. We thank Pamela Birrell and Jay Barr for technical assistance, Joan Wozniak for preparing the figure and Monique Prevost for typing the manuscript.

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Lickey, M.E., Zack, S. Extraocular photoreceptors can entrain the circadian rhythm in the abdominal ganglion ofAplysia . J. Comp. Physiol. 84, 361–366 (1973). https://doi.org/10.1007/BF00696348

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  • DOI: https://doi.org/10.1007/BF00696348

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