Population affinity and variation of sexual dimorphism in three-dimensional facial forms: comparisons between Turkish and Japanese populations

Abstract Examining the extent to which sex differences in three-dimensional (3D) facial soft tissue configurations are similar across diverse populations could suggest the source of the indirect evolutionary benefits of facial sexual dimorphism traits. To explore this idea, we selected two geographi...

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Autores principales:	Chihiro Tanikawa, M. Okan Akcam, Hatice Gokalp, Edlira Zere, Kenji Takada
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/16b4ee06e3064828bcafc3487f38a6f4
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spelling	oai:doaj.org-article:16b4ee06e3064828bcafc3487f38a6f42021-12-02T18:51:52ZPopulation affinity and variation of sexual dimorphism in three-dimensional facial forms: comparisons between Turkish and Japanese populations10.1038/s41598-021-96029-92045-2322https://doaj.org/article/16b4ee06e3064828bcafc3487f38a6f42021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96029-9https://doaj.org/toc/2045-2322Abstract Examining the extent to which sex differences in three-dimensional (3D) facial soft tissue configurations are similar across diverse populations could suggest the source of the indirect evolutionary benefits of facial sexual dimorphism traits. To explore this idea, we selected two geographically distinct populations. Three-dimensional model faces were derived from 272 Turkish and Japanese men and women; their facial morphologies were evaluated using landmark and surface-based analyses. We found four common facial features related to sexual dimorphism. Both Turkish and Japanese females had a shorter lower face height, a flatter forehead, greater sagittal cheek protrusion in the infraorbital region but less prominence of the cheek in the parotid-masseteric region, and an antero-posteriorly smaller nose when compared with their male counterparts. The results indicated the possible phylogenetic contribution of the masticatory organ function and morphogenesis on sexual dimorphism of the human face in addition to previously reported biological and psychological characteristics, including sexual maturity, reproductive potential, mating success, general health, immune response, age, and personality.Chihiro TanikawaM. Okan AkcamHatice GokalpEdlira ZereKenji TakadaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chihiro Tanikawa M. Okan Akcam Hatice Gokalp Edlira Zere Kenji Takada Population affinity and variation of sexual dimorphism in three-dimensional facial forms: comparisons between Turkish and Japanese populations
description	Abstract Examining the extent to which sex differences in three-dimensional (3D) facial soft tissue configurations are similar across diverse populations could suggest the source of the indirect evolutionary benefits of facial sexual dimorphism traits. To explore this idea, we selected two geographically distinct populations. Three-dimensional model faces were derived from 272 Turkish and Japanese men and women; their facial morphologies were evaluated using landmark and surface-based analyses. We found four common facial features related to sexual dimorphism. Both Turkish and Japanese females had a shorter lower face height, a flatter forehead, greater sagittal cheek protrusion in the infraorbital region but less prominence of the cheek in the parotid-masseteric region, and an antero-posteriorly smaller nose when compared with their male counterparts. The results indicated the possible phylogenetic contribution of the masticatory organ function and morphogenesis on sexual dimorphism of the human face in addition to previously reported biological and psychological characteristics, including sexual maturity, reproductive potential, mating success, general health, immune response, age, and personality.
format	article
author	Chihiro Tanikawa M. Okan Akcam Hatice Gokalp Edlira Zere Kenji Takada
author_facet	Chihiro Tanikawa M. Okan Akcam Hatice Gokalp Edlira Zere Kenji Takada
author_sort	Chihiro Tanikawa
title	Population affinity and variation of sexual dimorphism in three-dimensional facial forms: comparisons between Turkish and Japanese populations
title_short	Population affinity and variation of sexual dimorphism in three-dimensional facial forms: comparisons between Turkish and Japanese populations
title_full	Population affinity and variation of sexual dimorphism in three-dimensional facial forms: comparisons between Turkish and Japanese populations
title_fullStr	Population affinity and variation of sexual dimorphism in three-dimensional facial forms: comparisons between Turkish and Japanese populations
title_full_unstemmed	Population affinity and variation of sexual dimorphism in three-dimensional facial forms: comparisons between Turkish and Japanese populations
title_sort	population affinity and variation of sexual dimorphism in three-dimensional facial forms: comparisons between turkish and japanese populations
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/16b4ee06e3064828bcafc3487f38a6f4
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Population affinity and variation of sexual dimorphism in three-dimensional facial forms: comparisons between Turkish and Japanese populations

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