Recovery of learning ability after the ablation of the procerebrum in the terrestrial slug, <i>Limax Valentianus</i>
2008
Matsuo, R. | Ito, E.
The procerebrum (PC) is indispensable for odor-aversion learning in <i>Limax</i> . 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 <i>Limax</i> 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.
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