Abstract
In Experiment 1, rats experienced presentations of a discrete visual stimulus (Stage 1) until habituation of the orienting response (OR) occurred. On a test session given after an interval of 16 days (Stage 2) the OR reappeared. For control subjects that received no Stage 1 training but presentations of the light in Stage 2, habituation persisted during the test. All subjects then received conditioning trials on which the light preceded the delivery of food. They showed latent inhibition, acquiring the conditioned response less readily than control subjects that had not previously experienced the light. Experiment 2 confirmed that the latent inhibition effect survived the retention interval for subjects that received no habituation test session. This pattern of results implies that habituation of the OR and latent inhibition are determined by different mechanisms.
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This work was supported by a grant from the United Kingdom Science and Engineering Research Council.
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Hall, G., Schachtman, T.R. Differential effects of a retention interval on latent inhibition and the habituation of an orienting response. Animal Learning & Behavior 15, 76–82 (1987). https://doi.org/10.3758/BF03204907
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DOI: https://doi.org/10.3758/BF03204907