Rapid food-aversion learning by a terrestrial mollusk

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Science  15 Aug 1975:
Vol. 189, Issue 4202, pp. 567-570
DOI: 10.1126/science.1145215


The terrestrial slug Limax maximus can lean to avoid new palatable food if CO2 poisoning is paired with igestion of the new food. Some animals learn in one trail and remember without error for 3 weeks. Avoidance most commonly consists of complete rejection of the unsafe food, based on olfactory cues. This preparation offers the opportunity for detailed neurophysiological analysis of a rapid-onset learning mechanism of long duration.