NDLI: Conditioned avoidance responses survive contingency degradation in the garden slug, Lehmannia valentiana

Content Provider	Springer Nature Link
Author	Escobar, Martha Dunaway, Elizabeth P. Gennaro, Kyle H.
Copyright Year	2014
Abstract	Joint presentations of a conditioned stimulus (CS) and an unconditioned stimulus (US) strengthen the contingency between them, whereas presentations of one stimulus without the other degrade this contingency. For example, the CS can be presented without the US either before conditioning (CS–no US and then CS–US; latent inhibition) or after conditioning (CS–US and then CS–no US; extinction). In vertebrate subjects and several invertebrate species, a time lapse usually results in a return of the conditioned response, or spontaneous recovery. However, in land mollusks, spontaneous recovery from extinction has only recently been reported, and response recovery after latent inhibition has not been reported. In two experiments, using conditioned aversion to a food odor as a measure of learning and memory retention, we observed contingency degradation via latent inhibition (Experiment 1) and extinction (Experiment 2) in the common garden slug, Lehmannia valentiana. In both situations, the contingency degradation procedure successfully attenuated conditioned responding, and delaying testing by several days resulted in recovery of the conditioned response. This suggests that the CS–US association survived the degradation manipulation and was retained over an interval of several days.
Starting Page	305
Ending Page	312
Page Count	8
File Format	PDF
ISSN	15434494
Journal	Learning & Behavior
Volume Number	42
Issue Number	4
e-ISSN	15434508
Language	English
Publisher	Springer US
Publisher Date	2014-06-20
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Classical conditioning Invertebrate learning Extinction Spontaneous recovery Latent inhibition Psychology Neurosciences
Content Type	Text
Resource Type	Article
Subject	Experimental and Cognitive Psychology Cognitive Neuroscience Behavioral Neuroscience

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