Geographic and sex differences in the 3D configuration of the human parietal bone

doi:10.1537/ase.250506

IVPP-IR

	Geographic and sex differences in the 3D configuration of the human parietal bone
	Yan, Yi 1,2; Jashashvili, Tea 3,4; Carlson, Kristian J.3; Wu, Xiujie 1
	2025
发表期刊	ANTHROPOLOGICAL SCIENCE
ISSN	0918-7960
卷号	133 期号:2 页码:65-78
通讯作者	Wu, Xiujie(wuxiujie@ivpp.ac.cn)
摘要	As a sizable component of the cranial vault, the parietal bone is essential for understanding the regional variation of cranial surface morphology. Predigital, traditional morphological studies have tended to underemphasize the role of parietal trait variation, particularly in identifying region-specific and/or sex-related differences in modern human populations. Consequently, the extent of morphologi- cal variation in the parietal bone among modern human populations remains insufficiently understood. In this study, we perform a three-dimensional (3D) geometric morphometric analysis of the external surface of the parietal bone, using microcomputed tomography data from 120 human crania (60 males and 60 females) sampled from European and Chinese populations. The analysis of the periosteal surface of the parietal bone reveals significant sexual dimorphism in shape space. Specifically, the biparietal distance between pterion landmarks is wider in Chinese males than in Chinese females. Regional differences in parietal bone shape are more frequently statistically significant. Parietal bones of European populations tend to be wider and shorter, with less pronounced parietal eminences, whereas those from Chinese populations are relatively narrower and longer, exhibiting more prominent parietal eminences. When 3D geometric morphometric analysis is conducted in form space, which incorporates both shape and size, additional differences between sexes and populations become evident. Males ex- hibit significantly larger parietal bones than females, and individuals from European populations have significantly larger parietal bones than those from Chinese populations. Ultimately, differences in form space are more pronounced than those in shape space, emphasizing the importance of considering both shape and size in morphological analyses.
关键词	China Europe cranial vault geometry computed tomography
DOI	10.1537/ase.250506
关键词[WOS]	MORPHOLOGICAL TRAITS ; SHAPE ; COLLECTION ; PATTERNS ; CHINESE ; HISTORY ; SKULLS
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42372001]
项目资助者	National Natural Science Foundation of China
WOS研究方向	Anthropology ; Evolutionary Biology
WOS类目	Anthropology ; Evolutionary Biology
WOS记录号	WOS:001571672900003
出版者	ANTHROPOLOGICAL SOC NIPPON
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/25041
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Wu, Xiujie
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Southern Calif, Keck Sch Med, Dept Integrat Anat Sci, Los Angeles, CA 90033 USA 4.Univ Southern Calif, Keck Sch Med, Dept Radiol, Los Angeles, CA 90033 USA
推荐引用方式 GB/T 7714	Yan, Yi,Jashashvili, Tea,Carlson, Kristian J.,et al. Geographic and sex differences in the 3D configuration of the human parietal bone[J]. ANTHROPOLOGICAL SCIENCE,2025,133(2):65-78.
APA	Yan, Yi,Jashashvili, Tea,Carlson, Kristian J.,&Wu, Xiujie.(2025).Geographic and sex differences in the 3D configuration of the human parietal bone.ANTHROPOLOGICAL SCIENCE,133(2),65-78.
MLA	Yan, Yi,et al."Geographic and sex differences in the 3D configuration of the human parietal bone".ANTHROPOLOGICAL SCIENCE 133.2(2025):65-78.