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Sullivan RM, Wilson DA, Leon M. Associative Processes in Early Olfactory Preference Acquisition: Neural and Behavioral Consequences. Psychobiology (Austin, Tex). 1989;17(1):29-33doi: 10.3758/bf03337814.
Sullivan, R. M., Wilson, D. A., & Leon, M. (1989). Associative Processes in Early Olfactory Preference Acquisition: Neural and Behavioral Consequences. Psychobiology (Austin, Tex.), 17(1), 29-33. https://doi.org/10.3758/bf03337814
Sullivan, Regina M, et al. "Associative Processes in Early Olfactory Preference Acquisition: Neural and Behavioral Consequences." Psychobiology (Austin, Tex.) vol. 17,1 (1989): 29-33. doi: https://doi.org/10.3758/bf03337814
Sullivan RM, Wilson DA, Leon M. Associative Processes in Early Olfactory Preference Acquisition: Neural and Behavioral Consequences. Psychobiology (Austin, Tex). 1989;17(1):29-33. doi: 10.3758/bf03337814. PMID: 17572798; PMCID: PMC1892210.
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Psychobiology (Austin, Tex). 1989;17(1):29-33. doi: 10.3758/bf03337814.

Associative Processes in Early Olfactory Preference Acquisition: Neural and Behavioral Consequences.

Psychobiology (Austin, Tex.)

Regina M Sullivan, Donald A Wilson, Michael Leon

Affiliations

  1. University of California, Irvine, California.

PMID: 17572798 PMCID: PMC1892210 DOI: 10.3758/bf03337814

Abstract

Acquisition of behavioral conditioned responding and learned odor preferences during olfactory classical conditioning in rat pups requires forward or simultaneous pairings of the conditioned stimulus (CS) and the unconditioned stimulus (US). Other temporal relationships between the CS and US do not usually result in learning. The present study examined the influence of this CS-US relationship upon the neural olfactory bulb modifications that are acquired during early classical conditioning. Wistar rat pups were trained from Postnatal Days (PN) 1-18 with either forward (odor overlapping temporally with reinforcing stroking) or backward (stroking followed by odor) CS-US pairings. On PN 19, pups received either a behavioral odor preference test to the odor CS or an injection of (14)C 2-DG and exposure to the odor CS, or olfactory bulb single unit responses were recorded in response to exposure to the odor CS. Only pups that received forward presentations of the CS and US exhibited both a preference for the CS and modified olfactory bulb neural responses to the CS. These results, then, suggest that the modified olfactory bulb neural responses acquired during classical conditioning are guided by the same temporal constraints as those which govern the acquisition of behavioral conditioned responses.

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