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dc.contributor.authorHorschler, Daniel J.
dc.contributor.authorHare, Brian
dc.contributor.authorCall, Josep
dc.contributor.authorKaminski, Juliane
dc.contributor.authorMiklosi, Adam
dc.contributor.authorMacLean, Evan L.
dc.date.accessioned2020-01-03T00:36:32Z
dc.date.available2020-01-03T00:36:32Z
dc.date.issued2019-03
dc.identifier257948064
dc.identifier4b2dee96-c01e-4521-a4b1-3d1c8ef7d07b
dc.identifier000458606000006
dc.identifier85059667263
dc.identifier000458606000006
dc.identifier.citationHorschler , D J , Hare , B , Call , J , Kaminski , J , Miklosi , A & MacLean , E L 2019 , ' Absolute brain size predicts dog breed differences in executive function ' , Animal Cognition , vol. 22 , no. 2 , pp. 187-198 . https://doi.org/10.1007/s10071-018-01234-1en
dc.identifier.issn1435-9448
dc.identifier.otherORCID: /0000-0002-8597-8336/work/54819318
dc.identifier.urihttps://hdl.handle.net/10023/19218
dc.descriptionDJH was supported by an Emil W. Haury Fellowship from the School of Anthropology at the University of Arizona, and a Graduate Access Fellowship from the Graduate College at the University of Arizona. ÁM was supported by the Hungarian Academy of Sciences (MTA-ELTE Comparative Ethology Research Group, MTA 01 031).en
dc.description.abstractLarge-scale phylogenetic studies of animal cognition have revealed robust links between absolute brain volume and species differences in executive function. However, past comparative samples have been composed largely of primates, which are characterized by evolutionarily derived neural scaling rules. Therefore, it is currently unknown whether positive associations between brain volume and executive function reflect a broad-scale evolutionary phenomenon, or alternatively, a unique consequence of primate brain evolution. Domestic dogs provide a powerful opportunity for investigating this question due to their close genetic relatedness, but vast intraspecific variation. Using citizen science data on more than 7000 purebred dogs from 74 breeds, and controlling for genetic relatedness between breeds, we identify strong relationships between estimated absolute brain weight and breed differences in cognition. Specifically, larger-brained breeds performed significantly better on measures of short-term memory and self-control. However, the relationships between estimated brain weight and other cognitive measures varied widely, supporting domain-specific accounts of cognitive evolution. Our results suggest that evolutionary increases in brain size are positively associated with taxonomic differences in executive function, even in the absence of primate-like neuroanatomy. These findings also suggest that variation between dog breeds may present a powerful model for investigating correlated changes in neuroanatomy and cognition among closely related taxa.
dc.format.extent12
dc.format.extent1111362
dc.language.isoeng
dc.relation.ispartofAnimal Cognitionen
dc.subjectCognitive evolutionen
dc.subjectBrain evolutionen
dc.subjectBrain sizeen
dc.subjectExecutive functionen
dc.subjectBreed differencesen
dc.subjectCitizen scienceen
dc.subjectRC0321 Neuroscience. Biological psychiatry. Neuropsychiatryen
dc.subject3rd-DASen
dc.subject.lccRC0321en
dc.titleAbsolute brain size predicts dog breed differences in executive functionen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. Centre for Social Learning & Cognitive Evolutionen
dc.contributor.institutionUniversity of St Andrews. School of Psychology and Neuroscienceen
dc.identifier.doi10.1007/s10071-018-01234-1
dc.description.statusPeer revieweden
dc.date.embargoedUntil2020-01-03


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