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The interstimulus interval and classical conditioning in the marine snail Hermissenda crassicornis



The interstimulus interval and classical conditioning in the marine snail Hermissenda crassicornis



Behavioural Brain Research 35(1): 75-80



We examined the role of the interstimulus interval for the conditioned association between light and rotation stimuli in the marine snail Hermissenda. This interval between the conditioned stimulus (CS) and the unconditioned stimulus (US) is an important and widespread property of vertebrate associative learning. We demonstrated that with a forward CS-US delay of 1.0 s we were able to produce significant 24-h retention of an associative memory after 50 training trials. Other paired treatments providing intervals of 1.5 s, 0.5 s, simultaneous, and backward arrangements did not support retention at 24 h.

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Accession: 041680665

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PMID: 2803546

DOI: 10.1016/s0166-4328(89)80010-5


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