Human induced rotation and reorganization of the brain of domestic dogs.

Domestic dogs exhibit an extraordinary degree of morphological diversity. Such breed-to-breed variability applies equally to the canine skull, however little is known about whether this translates to systematic differences in cerebral organization. By looking at the paramedian sagittal magnetic reso...

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Autores principales:	Taryn Roberts, Paul McGreevy, Michael Valenzuela
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2010
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3a6463988a3743cab3f3598c08d8c8a6
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id	oai:doaj.org-article:3a6463988a3743cab3f3598c08d8c8a6
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spelling	oai:doaj.org-article:3a6463988a3743cab3f3598c08d8c8a62021-12-02T20:19:45ZHuman induced rotation and reorganization of the brain of domestic dogs.1932-620310.1371/journal.pone.0011946https://doaj.org/article/3a6463988a3743cab3f3598c08d8c8a62010-07-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/20668685/?tool=EBIhttps://doaj.org/toc/1932-6203Domestic dogs exhibit an extraordinary degree of morphological diversity. Such breed-to-breed variability applies equally to the canine skull, however little is known about whether this translates to systematic differences in cerebral organization. By looking at the paramedian sagittal magnetic resonance image slice of canine brains across a range of animals with different skull shapes (N = 13), we found that the relative reduction in skull length compared to width (measured by Cephalic Index) was significantly correlated to a progressive ventral pitching of the primary longitudinal brain axis (r = 0.83), as well as with a ventral shift in the position of the olfactory lobe (r = 0.81). Furthermore, these findings were independent of estimated brain size or body weight. Since brachycephaly has arisen from generations of highly selective breeding, this study suggests that the remarkable diversity in domesticated dogs' body shape and size appears to also have led to human-induced adaptations in the organization of the canine brain.Taryn RobertsPaul McGreevyMichael ValenzuelaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 5, Iss 7, p e11946 (2010)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Taryn Roberts Paul McGreevy Michael Valenzuela Human induced rotation and reorganization of the brain of domestic dogs.
description	Domestic dogs exhibit an extraordinary degree of morphological diversity. Such breed-to-breed variability applies equally to the canine skull, however little is known about whether this translates to systematic differences in cerebral organization. By looking at the paramedian sagittal magnetic resonance image slice of canine brains across a range of animals with different skull shapes (N = 13), we found that the relative reduction in skull length compared to width (measured by Cephalic Index) was significantly correlated to a progressive ventral pitching of the primary longitudinal brain axis (r = 0.83), as well as with a ventral shift in the position of the olfactory lobe (r = 0.81). Furthermore, these findings were independent of estimated brain size or body weight. Since brachycephaly has arisen from generations of highly selective breeding, this study suggests that the remarkable diversity in domesticated dogs' body shape and size appears to also have led to human-induced adaptations in the organization of the canine brain.
format	article
author	Taryn Roberts Paul McGreevy Michael Valenzuela
author_facet	Taryn Roberts Paul McGreevy Michael Valenzuela
author_sort	Taryn Roberts
title	Human induced rotation and reorganization of the brain of domestic dogs.
title_short	Human induced rotation and reorganization of the brain of domestic dogs.
title_full	Human induced rotation and reorganization of the brain of domestic dogs.
title_fullStr	Human induced rotation and reorganization of the brain of domestic dogs.
title_full_unstemmed	Human induced rotation and reorganization of the brain of domestic dogs.
title_sort	human induced rotation and reorganization of the brain of domestic dogs.
publisher	Public Library of Science (PLoS)
publishDate	2010
url	https://doaj.org/article/3a6463988a3743cab3f3598c08d8c8a6
work_keys_str_mv	AT tarynroberts humaninducedrotationandreorganizationofthebrainofdomesticdogs AT paulmcgreevy humaninducedrotationandreorganizationofthebrainofdomesticdogs AT michaelvalenzuela humaninducedrotationandreorganizationofthebrainofdomesticdogs
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Human induced rotation and reorganization of the brain of domestic dogs.

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