| Predictive learning in nutrient-based flavor conditioning. | |
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MedLine Citation:
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PMID: 22047870 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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This paper presents two experiments on nutrient-based flavor conditioning with rats as subjects and sucrose as the unconditioned stimulus (US). Experiment 1 was aimed at establishing an optimal control for conditioning, comparing simultaneous and serial presentations of a flavor and the US. The results showed that simultaneous, but not serial training, produced conditioning. Experiment 2 was designed to obtain evidence of summation as an index of both conditioned inhibition and predictive learning. Group Simultaneous received Pavlovian conditioned inhibition training during which flavor A was simultaneously paired with sucrose on excitatory trials (A+), and forming an unreinforced compound with flavor B on inhibitory trials (AB-). An independent excitor for the summation test was also trained by simultaneous pairings with sucrose (C+). In the control group (Blocked), the AB- trials were presented forming a block at the beginning of training to avoid a negative contingency-relationship with sucrose, and flavor A received serial rather than simultaneous pairing with sucrose (A --> +). On the summation test, only in group Simultaneous was consumption of the CB compound lower than that of flavor C alone, suggesting that, during training, flavor A activated an expectancy of the US occurrence. |
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Authors:
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David García-Burgos; Felisa González Reyes |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Psicothema Volume: 23 ISSN: 1886-144X ISO Abbreviation: Psicothema Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-11-03 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101189384 Medline TA: Psicothema Country: Spain |
Other Details:
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Languages: eng Pagination: 759-64 Citation Subset: IM |
Affiliation:
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Universidad de Granada. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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