Acta Biologica Hungarica

, Volume 59, Supplement 2, pp 73–76 | Cite as

Recovery of Learning Ability after the Ablation of the Procerebrum in the Terrestrial Slug, Limax valentianus

  • R. MatsuoEmail author
  • E. Ito


The procerebrum (PC) is indispensable for odor-aversion learning in Limax. On the other hand, the central nervous system (CNS) of some Pulmonata shows robustness against injury, recovering from nerve injury both at the histological and functional levels. To investigate whether the PC of Limax also shows robustness against nerve injury, we tested whether or not the slugs can acquire and retrieve odor-aversion memory after a long recovery period from PC ablation. When the recovery period is short (7 days), the PC-ablated slugs failed to avoid the conditioned odor. But when the recovery period is long (1 month), the PC-ablated slugs successfully avoided the conditioned odor. These results indicate that the CNS including the PC can recover from injury at least at the functional level.


Procerebrum Limax odor-aversion learning recovery 


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© Akadémiai Kiadó, Budapest 2008

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, 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.Kagawa School of Pharmaceutical SciencesTokushima Bunri UniversitySanuki, KagawaJapan

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