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dc.contributor.authorMorris, Richarden_AU
dc.date.accessioned2006-03-24
dc.date.available2006-03-24
dc.date.issued2000-01-01
dc.identifier.urihttp://hdl.handle.net/2123/372
dc.description.abstractThe experiments reported in this thesis attempted to examine the influence of thirst on the extinction of taste aversions in rats. Differences in the amount of stimulus exposure and deprivation state between groups were controlled for. The first experiment presented two novel flavours twelve times to rats when either thirsty or sated. A preference for the flavour presented when thirsty was established. The next three experiments examined whether this preference would accelerate the extinction of a taste aversion, by first pairing a novel flavour with lithium and then presenting the conditioned flavour when rats were either sated or thirsty. No evidence of accelerated extinction was found. The final two experiments examined whether the associatively-activated representation of sucrose could function to extinguish a taste-aversion to that sucrose without presenting sucrose itself. No evidence of representation-mediated extinction was found despite evidence that the context was associated with sucrose. The results indicate that the extinction of conditioned taste aversions is not influenced by counter-conditioning due to thirst relief, and extinction of such aversions appears to be due to similar processes as other forms of conditioning.en_AU
dc.format.extent76278 bytes
dc.format.extent1215465 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypeapplication/pdf
dc.languageenen_AU
dc.language.isoen_AU
dc.rightsCopyright Morris, Richard;http://www.library.usyd.edu.au/copyright.htmlen_AU
dc.subjectrats;learning;tastes;LiCl;extinctionen_AU
dc.titleThe Role of Counter-conditioning in the Extinction of Conditioned Taste Aversionsen_AU
dc.typeThesisen_AU
dc.date.valid2001-01-01en_AU
dc.type.thesisMasters by Researchen_AU
usyd.facultyFaculty of Science, School of Psychologyen_AU
usyd.departmentDepartment of Psychologyen_AU
usyd.degreeMaster of Science M.Sc.en_AU
usyd.awardinginstThe University of Sydneyen_AU


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