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                            Library & Multimedia
 Sexual Dimorphism in America: Geometric Morphometric Analysis of the Craniofacial Region
NCJ Number
              222147
Journal

*Journal of Forensic Sciences* Volume: 53 Issue: 1 Dated: January 2008 Pages: 54-57
Author(s)
          Erin H. Kimmerle Ph.D.;
                        Ann Ross Ph.D.;
                        Dennis Slice Ph.D.
Date Published

January 2008
Length
              4 pages
Annotation
              This study further examined the effect of stature and general physique ("size") and sex on craniofacial shape among American populations, so as to better understand the allometric foundation of skeletal traits currently used for sex estimation.
Abstract
              The study found that sex, but not size, had a significant influence on shape in both American Whites and Blacks. In contrast to the findings of Rosas and Bastir, the current study found that size did not have a significant influence on shape in either Whites or Blacks. This means that smaller and larger individuals within the same sex in the study samples are similar in shape; e.g., White females are of similar shape regardless of size. Moreover, the average cranial size of males was found to be different than the female means in both groups, indicating that there is significant sexual dimorphism present; however, the pattern of sexual dimorphism in shape does differ among groups. Using both size and shape outperforms discriminant functions developed from traditional metrics. The study used three-dimensional coordinates of 16 standard craniofacial landmarks, which were collected with a Microscribe-3DX digitizer and the program ThreeSkull. The sample consisted of 118 adults of known sex and ancestry (30 White males, 30 White females, 29 Black males, and 29 Black females) from the W.M. Bass Donated Collection and the Forensic Data Bank. The methods used are described. 6 tables, 4 figures, and 13 references
      
  
          Additional Details
Grant Number(s)
        2005-MU-BX-K078


  
  
        
  Agencies
        NIJ-Sponsored


  
  
        
  Publication Type
        Report (Study/Research)


  
  
        
  Award
        Geometric Morphometric Tools for the Classification of Human Skulls
    
  
  
Date Published: January 1, 2008
    
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