Advertisement

Acta Biologica Hungarica

, Volume 59, Supplement 2, pp 93–95 | Cite as

Neurophysiological Analysis of Visuo-Vestibular Conditioning in Lymnaea stagnalis

Short Communication
  • H. Suzuki
  • T. Horikoshi
  • M. SakakibaraEmail author
Article

Abstract

Lymnaea are capable of learning an association between light and rotation. The conditioning paradigm to produce this association and the unconditioned escape response are the same for both Lymnaea and Hermissenda, but the underlying neural mechanisms appear to differ between the two species due to differences in the organization and function of their visuo- and vestibular-sensory systems. The RPeD11 interneuron in Lymnaea controls withdrawal behavior. We analyzed the electrophysiologic characteristics of the RPeD11 and observed an increase in cell excitability; that is, spontaneous activity of the postsynaptic potential in the RpeD11 was increased in conditioned animals after learning acquisition.

Keywords

Withdrawal neuron RPeD11 excitability spontaneous EPSP visuo- and vestibular conditioning Lymnaea 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Alkon, D. L. (1987) Memory Traces in the Brain. Cambridge University Press, Cambridge, London, New York, Rochelle, Melbourne, Sydney.Google Scholar
  2. 2.
    Ono, M., Kawai, R., Horikoshi, T., Yasuoka, T., Sakakibara, M. (2002) Associative learning acquisition and retention depends on developmental stage in Lymnaea stagnalis. Neurobiol. Learn. Memory 78, 53–64.CrossRefGoogle Scholar
  3. 3.
    Sakakibara, M., Aritaka, T., Iizuka, A., Suzuki, H., Horikoshi, T., Lukowiak, K. (2005) Electrophysiological responses to light of neurons in the eye and statocyst of Lymnaea stagnalis. J. Neurophysiol. 93, 493–507.CrossRefGoogle Scholar
  4. 4.
    Sakakibara, M., Kawai, R., Kobayashi, S., Horikoshi, T. (1998) Associative learning of visual and vestibular stimuli in Lymnaea. Neurobiol. Learn. Memory 69, 1–12.CrossRefGoogle Scholar
  5. 5.
    Sakakibara, M., Okuda, F., Nomura, K., Watanabe, K., Meng, H., Horikoshi, T., Lukowiak, K. (2005) Potassium currents in isolated statocyst neurons and RPeD1 in the pond snail, Lymnaea stagnalis. J. Neurophysiol. 94, 3884–3892.CrossRefGoogle Scholar
  6. 6.
    Syed, N. I., Winlow, W. (1991) Coordination of locomotor and cardiorespiratory networks of Lymnaea stagnalis by a pair of identified interneurones. J. Exp. Biol. 158, 37–62.Google Scholar

Copyright information

© Akadémiai Kiadó, Budapest 2008

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.Course of Bioscience, Graduate School of BioscienceTokai University Unified Graduate SchoolShizuokaJapan
  2. 2.Department of Biological Science and Technology, School of High-Technology for Human WelfareTokai UniversityShizuokaJapan

Personalised recommendations