Brain gyrification in wild and domestic canids: Has domestication changed the gyrification index in domestic dogs?

Autor: Grewal JS; Department of Anatomy, Des Moines University, Des Moines, Iowa, USA., Gloe T; Department of Anatomy, Des Moines University, Des Moines, Iowa, USA., Hegedus J; Department of Anatomy, Des Moines University, Des Moines, Iowa, USA., Bitterman K; Department of Anatomy, Des Moines University, Des Moines, Iowa, USA., Billings BK; School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, Republic of South Africa., Chengetanai S; School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, Republic of South Africa., Bentil S; Department of Mechanical Engineering, Iowa State University, Ames, Iowa, USA., Wang VX; Departments of Radiology and Psychiatry,and BioMedical and Engineering Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA., Ng JC; Departments of Radiology and Psychiatry,and BioMedical and Engineering Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA., Tang CY; Departments of Radiology and Psychiatry,and BioMedical and Engineering Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA., Geletta S; Department of Public Health, Des Moines University, Des Moines, Iowa, USA., Wicinski B; Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA., Bertelson M; Center for Zoo and Wild Animal Health, Copenhagen Zoo, Fredericksberg, Denmark., Tendler BC; Wellcome Centre for Intergrative Neuroimaging, FMRIB, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK., Mars RB; Wellcome Centre for Intergrative Neuroimaging, FMRIB, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK.; Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen, Nijmegen, The Netherlands., Aguirre GK; Department of Neurology, Perelman School of Medicine, University of Pennsylvania Philadelphia, Philadelphia, Pennsylvania, USA., Rusbridge C; Fitzpatrick Referrals Orthopedics and Neurology, Fitzpatrick Referrals Ltd, Godalming, UK.; School of Veterinary Medicine, University of Surrey, Guildford, Surrey, UK., Hof PR; Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.; New York Consortium in Evolutionary Primatology, New York, New York, USA., Sherwood CC; Department of Anthropology and Center for the Advanced Study of Human Paleobiology, The George Washington University, Washington, District of Columbia, USA., Manger PR; School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, Republic of South Africa., Spocter MA; Department of Anatomy, Des Moines University, Des Moines, Iowa, USA.; School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, Republic of South Africa.; College of Veterinary Medicine, Department of Biomedical Sciences, Iowa State University, Ames, Iowa, USA.
Jazyk: angličtina
Zdroj: The Journal of comparative neurology [J Comp Neurol] 2020 Dec 15; Vol. 528 (18), pp. 3209-3228. Date of Electronic Publication: 2020 Jul 20.
DOI: 10.1002/cne.24972
Abstrakt: Over the last 15 years, research on canid cognition has revealed that domestic dogs possess a surprising array of complex sociocognitive skills pointing to the possibility that the domestication process might have uniquely altered their brains; however, we know very little about how evolutionary processes (natural or artificial) might have modified underlying neural structure to support species-specific behaviors. Evaluating the degree of cortical folding (i.e., gyrification) within canids may prove useful, as this parameter is linked to functional variation of the cerebral cortex. Using quantitative magnetic resonance imaging to investigate the impact of domestication on the canine cortical surface, we compared the gyrification index (GI) in 19 carnivore species, including six wild canid and 13 domestic dog individuals. We also explored correlations between global and local GI with brain mass, cortical thickness, white and gray matter volume and surface area. Our results indicated that GI values for domestic dogs are largely consistent with what would be expected for a canid of their given brain mass, although more variable than that observed in wild canids. We also found that GI in canids is positively correlated with cortical surface area, cortical thickness and total cortical gray matter volumes. While we found no evidence of global differences in GI between domestic and wild canids, certain regional differences in gyrification were observed.
(© 2020 Wiley Periodicals LLC.)
Databáze: MEDLINE
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