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dc.contributor.authorHayes, Jessica
dc.contributor.authorGarau, Celia
dc.contributor.authorChiacchierini, Giulia
dc.contributor.authorUrcelay, Gonzalo P.
dc.contributor.authorMcCutcheon, James Edgar
dc.contributor.authorApergis-Schoute, John
dc.date.accessioned2021-11-18T09:55:37Z
dc.date.available2021-11-18T09:55:37Z
dc.date.issued2021-09-23
dc.description.abstractIn anticipation of palatable food, rats can learn to restrict consumption of a less rewarding food type resulting in an increased consumption of the preferred food when it is made available. This construct is known as anticipatory negative contrast (ANC) and can help elucidate the processes that underlie binge-like behavior as well as self-control in rodent motivation models. In the current investigation we aimed to shed light on the ability of distinct predictors of a preferred food choice to generate contrast effects and the motivational processes that underlie this behavior. Using a novel set of rewarding solutions, we directly compared contextual and gustatory ANC predictors in both food restricted and free-fed Sprague-Dawley rats. Our results indicate that, despite being food restricted, rats are selective in their eating behavior and show strong contextually-driven ANC similar to free-fed animals. These differences mirrored changes in palatability for the less preferred solution across the different sessions as measured by lick microstructure analysis. In contrast to previous research, predictive cues in both food restricted and free-fed rats were sufficient for ANC to develop although flavor-driven ANC did not relate to a corresponding change in lick patterning. These differences in the lick microstructure between context- and flavor-driven ANC indicate that the motivational processes underlying ANC generated by the two predictor types are distinct. Moreover, an increase in premature port entries to the unavailable sipper – a second measure of ANC – in all groups reveals a direct influence of response competition on ANC development.en_US
dc.identifier.citationHayes, Garau, Chiacchierini, Urcelay, McCutcheon JE, Apergis-Schoute. Predictive and motivational factors influencing anticipatory contrast: A comparison of contextual and gustatory predictors in food restricted and free-fed rats. Physiology and Behavior. 2021;242en_US
dc.identifier.cristinIDFRIDAID 1946301
dc.identifier.doi10.1016/j.physbeh.2021.113603
dc.identifier.issn0031-9384
dc.identifier.issn1873-507X
dc.identifier.urihttps://hdl.handle.net/10037/23059
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalPhysiology and Behavior
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.subjectVDP::Social science: 200::Psychology: 260en_US
dc.subjectVDP::Samfunnsvitenskap: 200::Psykologi: 260en_US
dc.titlePredictive and motivational factors influencing anticipatory contrast: A comparison of contextual and gustatory predictors in food restricted and free-fed ratsen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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