An ontogenetic profile of infant ultrasonic vocalizations using whole litter recordings : the transition from infant to adult calls in rats

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dc.contributor.authorStark, Rachel A.
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorGibb, Robbin L.
dc.contributor.supervisorLi, Fangfang
dc.date.accessioned2017-12-05T16:55:44Z
dc.date.available2017-12-05T16:55:44Z
dc.date.issued2017
dc.degree.levelMastersen_US
dc.description.abstractRodent ultrasonic vocalizations (USVs) have been recorded throughout the lifespan of rats. The major finding is that USVs in infants and adults are different. It is hypothesized that there should be a transition in vocal communication that parallels the transition from infancy to adulthood; the development of their social autonomy. The method used in this thesis was a whole litter recording technique in which vocalizations were sampled from an entire litter periodically. Calls from postnatal day 7 to postnatal day 21 were analyzed for duration and frequency. Calls change from an infant to adult patterns around postnatal day 18 in typically developing rats, and earlier in animals given prenatal treatment of valproic acid; they shows precocious development. These findings suggest that whole litter recordings are a valid model of studying development and have potential to identify changes in typical development using animal models of developmental disorders.en_US
dc.embargoNoen_US
dc.identifier.urihttps://hdl.handle.net/10133/4992
dc.language.isoen_USen_US
dc.proquest.subject0317en_US
dc.proquest.subject0620en_US
dc.proquest.subject0451en_US
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta. : Universtiy of Lethbridge, Department of Neuroscienceen_US
dc.publisher.departmentDepartment of Neuroscienceen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectdevelopmenten_US
dc.subjectinfant USVsen_US
dc.subjectneurosicenceen_US
dc.subjectratsen_US
dc.subjectultrasonic vocalizationsen_US
dc.subjectwhole litter recordingen_US
dc.titleAn ontogenetic profile of infant ultrasonic vocalizations using whole litter recordings : the transition from infant to adult calls in ratsen_US
dc.typeThesisen_US
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