The Development of Sex Differences in Digital Formula from Infancy in the Fels Longitudinal Study

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The Development of Sex Differences in Digital Formula from Infancy in the Fels Longitudinal Study

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Title: The Development of Sex Differences in Digital Formula from Infancy in the Fels Longitudinal Study
Author: Lieberman, Daniel Eric; McIntyre, Matthew H.; Ellison, Peter T.; Demerath, Ellen; Towne, Bradford

Note: Order does not necessarily reflect citation order of authors.

Citation: McIntyre, Matthew H., Peter T. Ellison, Daniel E. Lieberman, Ellen Demerath, and Bradford Towne. 2005. The development of sex differences in digital formula from infancy in the Fels Longitudinal Study. Proceedings of the Royal Society B 272(1571): 1473-1479.
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Abstract: Relative finger lengths, especially the second-to-fourth finger length ratio, have been proposed as useful markers for prenatal testosterone action. This claim partly depends on an association of relative finger lengths in adults with related sex differences in children and infants. This paper reports the results of a study using serial radiographs to test for both sex differences in the fingers of infants and children and for a relationship between sex differences in the children and infant finger and adult finger length ratios. This is the first study using long-term serial data to evaluate the validity of finger length ratios as markers. We found not only that sex differences in finger length ratios arise prior to puberty, but that sex differences in the fingers of children are highly correlated with adult finger length ratios. Our results strongly encourage the further use of finger length ratios as markers of perinatal testosterone action.
Published Version: doi:10.1098/rspb.2005.3100
Other Sources: http://www.jstor.org/stable/30047710
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:3743678

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  • FAS Scholarly Articles [7587]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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