Inter-species cortical registration between macaques and humans using a functional network property under a spherical demons framework

Systematic evaluation of cortical differences between humans and macaques calls for inter-species registration of the cortex that matches homologous regions across species. For establishing homology across brains, structural landmarks and biological features have been used without paying sufficient...

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Autores principales:	Haewon Nam, Chongwon Pae, Jinseok Eo, Maeng-Keun Oh, Hae-Jeong Park
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/aa891cf66bd943b78ac58d2de065cca6
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spelling	oai:doaj.org-article:aa891cf66bd943b78ac58d2de065cca62021-11-04T06:07:18ZInter-species cortical registration between macaques and humans using a functional network property under a spherical demons framework1932-6203https://doaj.org/article/aa891cf66bd943b78ac58d2de065cca62021-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8530290/?tool=EBIhttps://doaj.org/toc/1932-6203Systematic evaluation of cortical differences between humans and macaques calls for inter-species registration of the cortex that matches homologous regions across species. For establishing homology across brains, structural landmarks and biological features have been used without paying sufficient attention to functional homology. The present study aimed to determine functional homology between the human and macaque cortices, defined in terms of functional network properties, by proposing an iterative functional network-based registration scheme using surface-based spherical demons. The functional connectivity matrix of resting-state functional magnetic resonance imaging (rs-fMRI) among cortical parcellations was iteratively calculated for humans and macaques. From the functional connectivity matrix, the functional network properties such as principal network components were derived to estimate a deformation field between the human and macaque cortices. The iterative registration procedure updates the parcellation map of macaques, corresponding to the human connectome project’s multimodal parcellation atlas, which was used to derive the macaque’s functional connectivity matrix. To test the plausibility of the functional network-based registration, we compared cortical registration using structural versus functional features in terms of cortical regional areal change. We also evaluated the interhemispheric asymmetry of regional area and its inter-subject variability in humans and macaques as an indirect validation of the proposed method. Higher inter-subject variability and interhemispheric asymmetry were found in functional homology than in structural homology, and the assessed asymmetry and variations were higher in humans than in macaques. The results emphasize the significance of functional network-based cortical registration across individuals within a species and across species.Haewon NamChongwon PaeJinseok EoMaeng-Keun OhHae-Jeong ParkPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Haewon Nam Chongwon Pae Jinseok Eo Maeng-Keun Oh Hae-Jeong Park Inter-species cortical registration between macaques and humans using a functional network property under a spherical demons framework
description	Systematic evaluation of cortical differences between humans and macaques calls for inter-species registration of the cortex that matches homologous regions across species. For establishing homology across brains, structural landmarks and biological features have been used without paying sufficient attention to functional homology. The present study aimed to determine functional homology between the human and macaque cortices, defined in terms of functional network properties, by proposing an iterative functional network-based registration scheme using surface-based spherical demons. The functional connectivity matrix of resting-state functional magnetic resonance imaging (rs-fMRI) among cortical parcellations was iteratively calculated for humans and macaques. From the functional connectivity matrix, the functional network properties such as principal network components were derived to estimate a deformation field between the human and macaque cortices. The iterative registration procedure updates the parcellation map of macaques, corresponding to the human connectome project’s multimodal parcellation atlas, which was used to derive the macaque’s functional connectivity matrix. To test the plausibility of the functional network-based registration, we compared cortical registration using structural versus functional features in terms of cortical regional areal change. We also evaluated the interhemispheric asymmetry of regional area and its inter-subject variability in humans and macaques as an indirect validation of the proposed method. Higher inter-subject variability and interhemispheric asymmetry were found in functional homology than in structural homology, and the assessed asymmetry and variations were higher in humans than in macaques. The results emphasize the significance of functional network-based cortical registration across individuals within a species and across species.
format	article
author	Haewon Nam Chongwon Pae Jinseok Eo Maeng-Keun Oh Hae-Jeong Park
author_facet	Haewon Nam Chongwon Pae Jinseok Eo Maeng-Keun Oh Hae-Jeong Park
author_sort	Haewon Nam
title	Inter-species cortical registration between macaques and humans using a functional network property under a spherical demons framework
title_short	Inter-species cortical registration between macaques and humans using a functional network property under a spherical demons framework
title_full	Inter-species cortical registration between macaques and humans using a functional network property under a spherical demons framework
title_fullStr	Inter-species cortical registration between macaques and humans using a functional network property under a spherical demons framework
title_full_unstemmed	Inter-species cortical registration between macaques and humans using a functional network property under a spherical demons framework
title_sort	inter-species cortical registration between macaques and humans using a functional network property under a spherical demons framework
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/aa891cf66bd943b78ac58d2de065cca6
work_keys_str_mv	AT haewonnam interspeciescorticalregistrationbetweenmacaquesandhumansusingafunctionalnetworkpropertyunderasphericaldemonsframework AT chongwonpae interspeciescorticalregistrationbetweenmacaquesandhumansusingafunctionalnetworkpropertyunderasphericaldemonsframework AT jinseokeo interspeciescorticalregistrationbetweenmacaquesandhumansusingafunctionalnetworkpropertyunderasphericaldemonsframework AT maengkeunoh interspeciescorticalregistrationbetweenmacaquesandhumansusingafunctionalnetworkpropertyunderasphericaldemonsframework AT haejeongpark interspeciescorticalregistrationbetweenmacaquesandhumansusingafunctionalnetworkpropertyunderasphericaldemonsframework
_version_	1718445169091543040

Inter-species cortical registration between macaques and humans using a functional network property under a spherical demons framework

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