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Hair color measurement and variation

Vaughn, Michelle, van Oorschot, Roland and Baindur-Hudson, Swati (2008) Hair color measurement and variation. American Journal of Physical Anthropology, 137 (1). pp. 91-96. ISSN 1096-8644

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Pigmentation of hair in humans has been investigated by medical scientists, anthropologists and, more recently, by forensic scientists. In every investigation, hair color must first be defined by the researchers. Subjective color assessment inhibits the reproducibility of experiments and the direct comparison of results. The aim of this study was to objectively measure human hair color and examine the variation found in a population with European ancestry, using the CIE L*a*b* color space. Observer-perceived hair colors were compared with self-reported hair colors and the color as measured by reflective spectrophotometry of 132 subjects of European ancestry. The presented data show that self-reported hair colors and observer-reported colors are similar; however, these categories are not necessarily the best way to categorize hair color for quantitative research. Using a two-step cluster analysis, hair color can be divided into categories or clusters based on spectrophotometric measurements in the CIE L*a*b* color space and these clusters can be well discriminated from each other. This separation is primarily based on the b* (yellow) color component and the clusters show agreement to observer-reported colors. This study illustrates the possibilities for and necessity of objectively defining the hair color phenotype for various downstream applications.

Item Type: Article
Uncontrolled Keywords: ResPubID15838. hair pigmentation, reflective spectrophotometry, cluster analysis, forensic science, hair colour measurement, hair colour variation
Subjects: Historical > Faculty/School/Research Centre/Department > School of Biomedical and Health Sciences
Current > FOR Classification > 1601 Anthropology
Historical > SEO Classification > 970106 Expanding Knowledge in the Biological Sciences
Depositing User: VUIR
Date Deposited: 05 Aug 2011 05:31
Last Modified: 05 Aug 2011 05:31
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Citations in Scopus: 19 - View on Scopus

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