File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Developmental shape changes in facial morphology: Geometric morphometric analyses based on a prospective, population-based, Chinese cohort in Hong Kong

TitleDevelopmental shape changes in facial morphology: Geometric morphometric analyses based on a prospective, population-based, Chinese cohort in Hong Kong
Authors
Issue Date2019
PublisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.action
Citation
PLoS One, 2019, v. 14 n. 6, article no. e0218542 How to Cite?
AbstractBackground Thorough understanding of developmental changes of human facial shape is lacking. The present study aimed to evaluate developmental shape changes of facial morphology based on a prospective, population-representative, Chinese cohort in Hong Kong. Methods A population-representative sample of Chinese in Hong Kong was followed. Serial facial images of over 260 participants were obtained at age 12, 15, and 18 years. Facial landmarks were digitized and the corresponding coordinates were submitted for Generalized Procrustes Analysis. The resultant Procrustes shape coordinates, which captured shape information encoded by the facial landmarks, were then used for statistical shape analyses. Results Small but significant developmental changes in mean facial shape were observed (p < 0.0001 for all pairwise comparisons). Significant age-related changes in the magnitude of variance of facial shape were also observed (p < 0.05). Phenotypic growth trajectories representing developmental shape changes were similar in size (p > 0.05) between sexes but differed in direction (p < 0.05) in shape space and trajectory shape (p < 0.05). The magnitude of shape differences between sexes remained constant from 12 to 18 years. Results of frontal facial shape analyses after removing the effect of allometry were similar to results obtained before removal of allometry. For lateral facial configurations, allometric trajectories among the age-by-sex groups were similar in slope (p > 0.05) but varied in directions in the multidimensional shape space. Conclusions Our findings suggested significant age-related changes in facial shape and provided a dynamic view of developmental changes in sexual dimorphism of facial shape. Allometry contributed minimally to developmental changes in frontal facial shape. In addition, the allometric trajectories for lateral facial configurations were similar in rate of shape change but differed in their directions in shape space. © 2019 Wen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Persistent Identifierhttp://hdl.handle.net/10722/273828
ISSN
2020 Impact Factor: 3.24
2015 SCImago Journal Rankings: 1.395
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWen, YF-
dc.contributor.authorWong, HM-
dc.contributor.authorMcGrath, CPJ-
dc.date.accessioned2019-08-18T14:49:22Z-
dc.date.available2019-08-18T14:49:22Z-
dc.date.issued2019-
dc.identifier.citationPLoS One, 2019, v. 14 n. 6, article no. e0218542-
dc.identifier.issn1932-6203-
dc.identifier.urihttp://hdl.handle.net/10722/273828-
dc.description.abstractBackground Thorough understanding of developmental changes of human facial shape is lacking. The present study aimed to evaluate developmental shape changes of facial morphology based on a prospective, population-representative, Chinese cohort in Hong Kong. Methods A population-representative sample of Chinese in Hong Kong was followed. Serial facial images of over 260 participants were obtained at age 12, 15, and 18 years. Facial landmarks were digitized and the corresponding coordinates were submitted for Generalized Procrustes Analysis. The resultant Procrustes shape coordinates, which captured shape information encoded by the facial landmarks, were then used for statistical shape analyses. Results Small but significant developmental changes in mean facial shape were observed (p < 0.0001 for all pairwise comparisons). Significant age-related changes in the magnitude of variance of facial shape were also observed (p < 0.05). Phenotypic growth trajectories representing developmental shape changes were similar in size (p > 0.05) between sexes but differed in direction (p < 0.05) in shape space and trajectory shape (p < 0.05). The magnitude of shape differences between sexes remained constant from 12 to 18 years. Results of frontal facial shape analyses after removing the effect of allometry were similar to results obtained before removal of allometry. For lateral facial configurations, allometric trajectories among the age-by-sex groups were similar in slope (p > 0.05) but varied in directions in the multidimensional shape space. Conclusions Our findings suggested significant age-related changes in facial shape and provided a dynamic view of developmental changes in sexual dimorphism of facial shape. Allometry contributed minimally to developmental changes in frontal facial shape. In addition, the allometric trajectories for lateral facial configurations were similar in rate of shape change but differed in their directions in shape space. © 2019 Wen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.-
dc.languageeng-
dc.publisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.action-
dc.relation.ispartofPLoS ONE-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleDevelopmental shape changes in facial morphology: Geometric morphometric analyses based on a prospective, population-based, Chinese cohort in Hong Kong-
dc.typeArticle-
dc.identifier.emailWong, HM: wonghmg@hkucc.hku.hk-
dc.identifier.emailMcGrath, CPJ: mcgrathc@hkucc.hku.hk-
dc.identifier.authorityWong, HM=rp00042-
dc.identifier.authorityMcGrath, CPJ=rp00037-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1371/journal.pone.0218542-
dc.identifier.pmid31252428-
dc.identifier.scopuseid_2-s2.0-85068969196-
dc.identifier.hkuros301889-
dc.identifier.volume14-
dc.identifier.issue6-
dc.identifier.spagearticle no. e0218542-
dc.identifier.epagearticle no. e0218542-
dc.identifier.isiWOS:000484915000013-
dc.publisher.placeUnited States-
dc.identifier.issnl1932-6203-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats