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Associative mechanisms involved in specific Pavlovian-to-instrumental transfer (PIT) in human learning tasks

Alarcón, Daniel; Bonardi, Charlotte; Delamater, Andrew

Authors

Daniel Alarcón lpxdeala@exmail.nottingham.ac.uk

Andrew Delamater



Abstract

Four experiments compared the effect of forward and backward conditioning procedures on the ability of conditioned stimuli (CSs) to elevate instrumental responding in a Pavlovian-to-instrumental transfer (PIT) task. Two responses were each trained with one distinct outcome (R1->O1, R2->O2), either concurrently (Experiment 1) or separately (Experiments 2, 3 and 4). Then, in Experiments 1 and 2, four CSs were either followed or preceded by one outcome (A->O1, B->O2, O1->C, O2->D). In Experiment 3 each CS was preceded and followed by an outcome: for one group of participants both outcomes were identical (e.g., O1->A->O1, O2->B->O2), but for the other they were different (e.g., O1->A->O2, O2->B->O1). In Experiment 4 two CSs were preceded and followed by identical outcomes, and two CSs by different outcomes. In the PIT tests participants performed R1 and R2 in the presence and absence of the CSs. In Experiments 1 and 2 only the CSs followed by outcomes in Pavlovian training elevated responding. In Experiments 3 and 4 all the CSs elevated responding but based on the outcome that followed them in training. These results support the stimulusoutcome-response (S-O-R) mechanism of specific PIT, according to which CSs elevate responding via activation of its associated outcome representation.

Journal Article Type Article
Publication Date 2018-07
Journal Quarterly Journal of Experimental Psychology
Print ISSN 1747-0218
Electronic ISSN 1747-0226
Publisher SAGE Publications
Peer Reviewed Peer Reviewed
Volume 71
Issue 7
Pages 1607-1625
APA6 Citation Alarcón, D., Bonardi, C., & Delamater, A. (2018). Associative mechanisms involved in specific Pavlovian-to-instrumental transfer (PIT) in human learning tasks. Quarterly Journal of Experimental Psychology, 71(7), 1607-1625. doi:10.1080/17470218.2017.1342671
DOI https://doi.org/10.1080/17470218.2017.1342671
Keywords Pavlovian-instrumental transfer (PIT); response-outcome associations;backward conditioning, incentive motivation, human decision making
Publisher URL http://journals.sagepub.com/doi/10.1080/17470218.2017.1342671
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information Journal publication in process of transferring to SAGE.

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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