An investigation into bilateral asymmetry of the appendicular skeleton of the adult human and its use in physical and forensic anthropology

Hdl Handle:
http://hdl.handle.net/10149/301633
Title:
An investigation into bilateral asymmetry of the appendicular skeleton of the adult human and its use in physical and forensic anthropology
Authors:
Garrido Varas, C. E. (Claudia)
Advisors:
Thompson, T. J. U. (Tim)
Citation:
Garrido Varas, C.E. (2013) An investigation into bilateral asymmetry of the appendicular skeleton of the adult human and its use in physical and forensic anthropology. Unpublished PhD Thesis, Teesside University
Publisher:
Teesside University
Issue Date:
2-Sep-2013
URI:
http://hdl.handle.net/10149/301633
Abstract:
The aim of this study was to establish whether the asymmetry of bilateral elements of the skeleton is useful for the reassociation of paired elements in the analysis of commingled skeletal remains; particularly addressing the forensic scenario of Chilean Human Rights cases. The asymmetry of the appendicular skeleton of the modern adult Chilean population was investigated in its morphological aspect, using both traditional anthropometry and geometric morphometrics. The sample was selected from the Colección Subactual de Santiago, housed in the University of Chile, Santiago, Chile, with N= 131 (69 males and 62 females). The traditional metric analysis of size and the geometric morphometric analysis of shape showed that there was a significant difference between sides in both sexes with a strong component of directional asymmetry. Mean metrics and ranges of asymmetry were established, contributing to the characterization of this population. A method to pair match elements from commingled settings, which is a combination of metric ranges of asymmetry and principal component analysis of shape variables, was created resulting in 95% accuracy when pair matching the humerus, radius, femur and tibia. This constitutes an important contribution to the analysis of shape in forensic contexts due to its strong mathematical component, objectivity and repeatability.
Type:
Thesis or dissertation
Language:
en
Keywords:
commingled remains; bilateral asymmetry; Chile; forensic anthropology; geometric morphometrics; pair matching
Sponsors:
Becas Chile

Full metadata record

DC FieldValue Language
dc.contributor.advisorThompson, T. J. U. (Tim)en_GB
dc.contributor.authorGarrido Varas, C. E. (Claudia)en_GB
dc.date.accessioned2013-09-16T14:53:24Z-
dc.date.available2013-09-16T14:53:24Z-
dc.date.issued2013-09-02-
dc.identifier.urihttp://hdl.handle.net/10149/301633-
dc.description.abstractThe aim of this study was to establish whether the asymmetry of bilateral elements of the skeleton is useful for the reassociation of paired elements in the analysis of commingled skeletal remains; particularly addressing the forensic scenario of Chilean Human Rights cases. The asymmetry of the appendicular skeleton of the modern adult Chilean population was investigated in its morphological aspect, using both traditional anthropometry and geometric morphometrics. The sample was selected from the Colección Subactual de Santiago, housed in the University of Chile, Santiago, Chile, with N= 131 (69 males and 62 females). The traditional metric analysis of size and the geometric morphometric analysis of shape showed that there was a significant difference between sides in both sexes with a strong component of directional asymmetry. Mean metrics and ranges of asymmetry were established, contributing to the characterization of this population. A method to pair match elements from commingled settings, which is a combination of metric ranges of asymmetry and principal component analysis of shape variables, was created resulting in 95% accuracy when pair matching the humerus, radius, femur and tibia. This constitutes an important contribution to the analysis of shape in forensic contexts due to its strong mathematical component, objectivity and repeatability.en_GB
dc.description.sponsorshipBecas Chileen_GB
dc.language.isoenen
dc.publisherTeesside Universityen
dc.subjectcommingled remainsen_GB
dc.subjectbilateral asymmetryen_GB
dc.subjectChileen_GB
dc.subjectforensic anthropologyen_GB
dc.subjectgeometric morphometricsen_GB
dc.subjectpair matchingen_GB
dc.titleAn investigation into bilateral asymmetry of the appendicular skeleton of the adult human and its use in physical and forensic anthropologyen_GB
dc.typeThesis or dissertationen
dc.publisher.departmentSchool of Science and Engineeringen_GB
dc.type.qualificationnamePhDen
dc.type.qualificationlevelDoctoralen
or.citation.harvardGarrido Varas, C.E. (2013) An investigation into bilateral asymmetry of the appendicular skeleton of the adult human and its use in physical and forensic anthropology. Unpublished PhD Thesis, Teesside University-
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