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Journal of comparative physiology

, Volume 83, Issue 4, pp 361–376 | Cite as

The function of photoexcitive neurones in the central ganglia for behavioral activity of the marine mollusc,Onchidium verruculatum

  • Tsukasa Gotow
  • Hideki Tateda
  • Masutaro Kuwabara
Article

Summary

  1. 1.

    The function of the photoexcitive neurones located within the CNS in the marine pulmonate mollusc,Onchidium verruculatum was investigated.

     
  2. 2.

    A light-evoked discharge was recorded from the photoexcitive neurones in the whole animal preparation (Fig. 3).

     
  3. 3.

    Tactile stimuli from the mantle were mediated synaptically to the photoexcitive neurones through the pleuro-parietal nerves of both sides (Fig. 4).

     
  4. 4.

    An attempt was made to confirm the tactile receptive field of the photoexcitive neurones, Ep-2, Bp-3 and Es-1 by stimulating the mantle surface of the animal with brush strokes (Fig. 5).

     
  5. 5.

    It was suggested that sensory inputs which inhibited the photoexcitive neurones were derived from some mechanoreceptors other than tactile receptors within the mantle (Fig. 6).

     
  6. 6.

    A stereotyped response (the mantle-levating reflex) was evoked by tactile stimuli given to the mantle surface. This response could also be elicited by direct electrical stimulation of the photoexcitive neurones (Fig. 8).

     
  7. 7.

    The photoexcitive neurones played a role in regulating the transmission of the tactile sensory information (Fig. 9).

     
  8. 8.

    From these results, it was postulated that the photoexcitive neurones modified the activity level of the mantle-levating reflex.

     

Keywords

Electrical Stimulation Receptive Field Sensory Input Sensory Information Behavioral Activity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer-Verlag 1973

Authors and Affiliations

  • Tsukasa Gotow
    • 1
  • Hideki Tateda
    • 1
  • Masutaro Kuwabara
    • 1
  1. 1.Department of Biology, Faculty of ScienceKyushu UniversityFukuoka

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