Juvenile Lymnaea ventilate, learn and remember differently than do adult Lymnaea

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Juvenile Lymnaea ventilate, learn and remember differently than do adult Lymnaea.

Adult snails are capable of learning associatively not to perform aerial respiration and then to consolidate the acquired behaviour into long-term memory (LTM). Juvenile Lymnaea, however, perform aerial respiration significantly less often and the three-neuron circuit that drives this behaviour operates significantly differently than in it does in adults. We asked whether these ontogenic behavi...

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Electrophysiological differences in the CpG aerial respiratory behavior between juvenile and adult Lymnaea.

Intact, freely moving juvenile Lymnaea perform aerial respiration significantly less often than do adults. We therefore hypothesized that RPeD1, the central pattern generator (CPG) neuron that initiates rhythmogenesis, would be less active in juveniles than adults. Using both isolated and semi-intact preparations to directly test this hypothesis, we found the opposite; juvenile RPeD1s were sign...

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Predator detection enables juvenile Lymnaea to form long-term memory.

Learning and memory provide the flexibility an organism requires to respond to changing social and ecological conditions. Juvenile Lymnaea have previously been shown to have a diminished capacity to form long-term memory (LTM) following operant conditioning of aerial respiratory behavior. Juvenile Lymnaea, however, can form LTM following classical conditioning of appetitive behaviors. Here, we ...

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ژورنال

عنوان ژورنال: Journal of Experimental Biology

سال: 2005

ISSN: 1477-9145,0022-0949

DOI: 10.1242/jeb.01544