Abstract
Latent inhibition (LI) is a phenomenon by which preexposure to the conditioned stimulus (CS) retards the subsequent generation of conditioned responses (CR) when the CS is paired with an unconditioned stimulus (US) (Lubow and Moore, 1959). LI can be obtained through different procedures. In a between-subject procedure, animals are either (a) simply placed in the context in the nonpreexposed (NPE) case or (b) preexposed to the CS in the preexposed (PE) case. In a within-subject procedure, animals are (a) preexposed to the target CS and (b) conditioned either to the target CS (PE) or a control CS (NPE). In both cases, LI is evaluated by the difference in conditioning attained by the PE and NPE animals.
Published Version
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