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dc.contributor.authorPérez, Omar D
dc.contributor.authorAitken, Michael RF
dc.contributor.authorMilton, Amy
dc.contributor.authorDickinson, Anthony
dc.date.accessioned2018-10-03T04:43:16Z
dc.date.available2018-10-03T04:43:16Z
dc.date.issued2018-11
dc.identifier.issn0023-9690
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/283017
dc.description.abstractThe higher response rates observed on ratio than on matched interval reward schedules has been attributed to the differential reinforcement of longer inter-response times (IRTs) on the interval contingency. Some data, however, seem to contradict this hypothesis, showing that the difference is still observed when the role of IRT reinforcement is neutralized by using a regulated-probability interval schedule (RPI). Given the mixed evidence for these predictions, we re-examined this hypothesis by training three groups of rats to lever press under ratio, interval and RPI schedules across two phases while matching reward rates within triads. At the end of the first phase, the master ratio and RPI groups responded at similar rates. In the second phase, an interval group yoked to the same master ratio group of the first phase responded at a lower rate than the RPI group. Post-hoc analysis showed comparable reward rates for master and yoked schedules. The experienced response-outcome rate correlations were likewise similar and approached zero as training progressed. We discuss these results in terms of a contemporary dual-system model of instrumental conditioning.
dc.format.mediumPrint
dc.languageeng
dc.publisherElsevier BV
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleA re-examination of responding on ratio and regulated-probability interval schedules.
dc.typeArticle
prism.endingPage8
prism.publicationDate2018
prism.publicationNameLearn Motiv
prism.startingPage1
prism.volume64
dc.identifier.doi10.17863/CAM.30381
dcterms.dateAccepted2018-07-25
rioxxterms.versionofrecord10.1016/j.lmot.2018.07.003
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2018-11
dc.contributor.orcidMilton, Amy [0000-0003-0175-9417]
dc.identifier.eissn1095-9122
rioxxterms.typeJournal Article/Review
pubs.funder-project-idMedical Research Council (G1002231)
datacite.issupplementedby.urlhttps://doi.org/10.17863/CAM.22861


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International