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题名Prevalence and heritability of handedness in a Hong Kong Chinese twin and singleton sample
作者
发表日期2020-04-22
发表期刊BMC Psychology
卷号8期号:1
摘要

Background: Left-handedness prevalence has been consistently reported at around 10% with heritability estimates at around 25%. Higher left-handedness prevalence has been reported in males and in twins. Lower prevalence has been reported in Asia, but it remains unclear whether this is due to biological or cultural factors. Most studies are based on samples with European ethnicities and using the preferred hand for writing as key assessment. Here, we investigated handedness in a sample of Chinese school children in Hong Kong, including 426 singletons and 205 pairs of twins, using both the Edinburgh Handedness Inventory and Pegboard Task. Results: Based on a binary definition of writing hand, we found a higher prevalence of left-handedness (8%) than what was previously reported in Asian datasets. We found no evidence of increased left-handedness in twins, but our results were in line with previous findings showing that males have a higher tendency to be left-handed than females. Heritability was similar for both hand preference (21%) and laterality indexes (22%). However, these two handedness measures present only a moderate correlation (.42) and appear to be underpinned by different genetic factors. Conclusion: In summary, we report new reference data for an ethnic group usually underrepresented in the literature. Our heritability analysis supports the idea that different measures will capture different components of handedness and, as a consequence, datasets assessed with heterogeneous criteria are not easily combined or compared.

关键词Chinese children Edinburgh handedness inventory Handedness Pegboard Twins
DOI10.1186/s40359-020-00401-9
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收录类别SSCI
语种英语English
WOS研究方向Psychology
WOS类目Psychology, Multidisciplinary
WOS记录号WOS:000700872900001
Scopus入藏号2-s2.0-85083948737
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://repository.uic.edu.cn/handle/39GCC9TT/13665
专题个人在本单位外知识产出
通讯作者Paracchini, Silvia
作者单位
1.Department of Psychology,Chinese University of Hong Kong,Hong Kong,Hong Kong
2.Department of Psychology,University of Hong Kong,Hong Kong,Hong Kong
3.Department of Obstetrics and Gynaecology,Chinese University of Hong Kong,Hong Kong,Hong Kong
4.School of Medicine,University of St Andrews,St. Andrews,United Kingdom
推荐引用方式
GB/T 7714
Zheng, Mo,McBride, Catherine,Ho, Connie Suk Hanet al. Prevalence and heritability of handedness in a Hong Kong Chinese twin and singleton sample[J]. BMC Psychology, 2020, 8(1).
APA Zheng, Mo, McBride, Catherine, Ho, Connie Suk Han, Chan, Jonathan Ka Chun, Choy, Kwong Wai, & Paracchini, Silvia. (2020). Prevalence and heritability of handedness in a Hong Kong Chinese twin and singleton sample. BMC Psychology, 8(1).
MLA Zheng, Mo,et al."Prevalence and heritability of handedness in a Hong Kong Chinese twin and singleton sample". BMC Psychology 8.1(2020).
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