Exploring Ancestral Variation of the Hyoid
Article first published online: 10 NOV 2011
© 2011 American Academy of Forensic Sciences
Journal of Forensic Sciences
Volume 57, Issue 1, pages 41–46, January 2012
How to Cite
Kindschuh, S. C., Dupras, T. L. and Cowgill, L. W. (2012), Exploring Ancestral Variation of the Hyoid. Journal of Forensic Sciences, 57: 41–46. doi: 10.1111/j.1556-4029.2011.01962.x
- Issue published online: 4 JAN 2012
- Article first published online: 10 NOV 2011
- Received 23 May 2010; and in revised form 14 Dec. 2010; accepted 18 Dec. 2010.
- forensic science;
- forensic anthropology;
- discriminate function analysis;
- Terry collection
Abstract: This study utilizes metric analysis to examine size and shape variation between hyoids of Africans and Europeans in the Robert J. Terry Anatomical Collection. A total of 200 fused and unfused hyoids were measured and three statistical methods were employed to explore variation between ancestries. First, independent sample t-tests showed that some significant size differences do occur between ancestries. Second, to examine shape variation, skeletal measurements were regressed on the geometric mean using least squares linear regression with the residuals used to evaluate size-corrected shape differences. Finally, discriminant function analysis was used to develop two functions for ancestry prediction with overall accuracies of 73% and 77%. Results of the analyses suggest hyoid size and shape differences do occur between ancestries, notably that European hyoids are broader than African hyoids, while the African hyoid is longer than Europeans.