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Neuronal mechanisms underlying behavioral switching in a pteropod mollusc

Publication ,  Journal Article
Huang, Z; Satterlie, RA
Published in: Journal of Comparative Physiology A
April 1, 1990

In the pteropod mollusc Clione limacina, wing retraction takes precedence over spontaneous and continuous swimming, a phenomenon here defined as behavioral switching. The wing retraction system is organized as a simple reflex in which wing mechanoreceptors activate a pair of retraction interneurons which in turn excite at least two pairs of retraction motoneurons. Activation of individual mechanoreceptors does not inhibit swimming or trigger wing retraction. A pair of retraction interneurons can fully suppress swimming when induced to fire at physiological frequencies, and may be both sufficient and necessary for swim inhibition. Retraction interneurons monosynaptically inhibit both swim interneurons and swim motoneurons. Retraction motoneurons inhibit swim motoneurons through a polysynaptic pathway. A model summarizing the neural circuitry underlying behavioral switching in Clione is presented. A comparison of this model with the behavioral choice model in Pleurobranchaea reveals that the overall neural mechanisms for behavioral choice and behavioral switching are similar as both involve dual function interneurons that not only activate their own motor pathway, but also inhibit the competing motor system. While inhibition is biased toward the afferent side of the competing circuit in behavioral choice, it is biased to the efferent side in behavioral switching. © 1990 Springer-Verlag.

Duke Scholars

Published In

Journal of Comparative Physiology A

DOI

EISSN

1432-1351

ISSN

0340-7594

Publication Date

April 1, 1990

Volume

166

Issue

6

Start / End Page

875 / 887

Related Subject Headings

  • Neurology & Neurosurgery
  • 11 Medical and Health Sciences
  • 06 Biological Sciences
 

Citation

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Huang, Z., & Satterlie, R. A. (1990). Neuronal mechanisms underlying behavioral switching in a pteropod mollusc. Journal of Comparative Physiology A, 166(6), 875–887. https://doi.org/10.1007/BF00187335
Huang, Z., and R. A. Satterlie. “Neuronal mechanisms underlying behavioral switching in a pteropod mollusc.” Journal of Comparative Physiology A 166, no. 6 (April 1, 1990): 875–87. https://doi.org/10.1007/BF00187335.
Huang Z, Satterlie RA. Neuronal mechanisms underlying behavioral switching in a pteropod mollusc. Journal of Comparative Physiology A. 1990 Apr 1;166(6):875–87.
Huang, Z., and R. A. Satterlie. “Neuronal mechanisms underlying behavioral switching in a pteropod mollusc.” Journal of Comparative Physiology A, vol. 166, no. 6, Apr. 1990, pp. 875–87. Scopus, doi:10.1007/BF00187335.
Huang Z, Satterlie RA. Neuronal mechanisms underlying behavioral switching in a pteropod mollusc. Journal of Comparative Physiology A. 1990 Apr 1;166(6):875–887.
Journal cover image

Published In

Journal of Comparative Physiology A

DOI

EISSN

1432-1351

ISSN

0340-7594

Publication Date

April 1, 1990

Volume

166

Issue

6

Start / End Page

875 / 887

Related Subject Headings

  • Neurology & Neurosurgery
  • 11 Medical and Health Sciences
  • 06 Biological Sciences