A quantitative approach for analysing bone modelling patterns from craniofacial surfaces in hominins
Bone size and shape arise throughout ontogeny as a result of the coordinated activity of osteoblasts and osteoclasts, responsible for bone deposition and resorption, and growth displacements. The modelling processes leave specific microstructural features on the bone surface, which can be used to in...
Guardado en:
| Autores principales: | , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2017
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/81263 |
| Aporte de: |
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I19-R120-10915-81263 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Antropología generalized maps hominin crania maxilla missing data spatial interpolation |
| spellingShingle |
Antropología generalized maps hominin crania maxilla missing data spatial interpolation Brachetta Aporta, Natalia González, Paula Natalia Bernal, Valeria A quantitative approach for analysing bone modelling patterns from craniofacial surfaces in hominins |
| topic_facet |
Antropología generalized maps hominin crania maxilla missing data spatial interpolation |
| description |
Bone size and shape arise throughout ontogeny as a result of the coordinated activity of osteoblasts and osteoclasts, responsible for bone deposition and resorption, and growth displacements. The modelling processes leave specific microstructural features on the bone surface, which can be used to infer the mechanisms shaping craniofacial traits in extinct and extant species. However, the analysis of bone surfaces from fossils and archaeological samples faces some difficulties related to the bone loss caused by taphonomic factors, and the lack of formal methods for estimating missing information and comparing the patterns of bone modelling among several specimens and samples. The present study provides a new approach for the quantitative analysis of bone formation and resorption patterns obtained from craniofacial surfaces. First, interpolation techniques were used to estimate missing data on high-resolution replicas of the left maxilla in a sample of sub-adult and adult modern humans and sub-adult fossil hominins. The performance of this approach was assessed by simulating variable amounts of missing data. Then, we applied measures of dispersion and central tendency to represent the variation and average pattern of bone modelling within samples. The spatial interpolation resulted in reliable estimations of the type of cell activity (deposition or resorption) in the missing areas, even when large extensions of the bone surface were lost. The quantification of the histological data allowed us to integrate the information of different specimens and depict the areas with higher and lower variation in the bone modelling pattern of the maxilla among specimens. Overall, the main advantages of the quantitative approach used here for generating bone modelling patterns are the high replicability and the possibility of incorporating variation among specimens into the comparisons among samples. |
| format |
Articulo Articulo |
| author |
Brachetta Aporta, Natalia González, Paula Natalia Bernal, Valeria |
| author_facet |
Brachetta Aporta, Natalia González, Paula Natalia Bernal, Valeria |
| author_sort |
Brachetta Aporta, Natalia |
| title |
A quantitative approach for analysing bone modelling patterns from craniofacial surfaces in hominins |
| title_short |
A quantitative approach for analysing bone modelling patterns from craniofacial surfaces in hominins |
| title_full |
A quantitative approach for analysing bone modelling patterns from craniofacial surfaces in hominins |
| title_fullStr |
A quantitative approach for analysing bone modelling patterns from craniofacial surfaces in hominins |
| title_full_unstemmed |
A quantitative approach for analysing bone modelling patterns from craniofacial surfaces in hominins |
| title_sort |
quantitative approach for analysing bone modelling patterns from craniofacial surfaces in hominins |
| publishDate |
2017 |
| url |
http://sedici.unlp.edu.ar/handle/10915/81263 |
| work_keys_str_mv |
AT brachettaaportanatalia aquantitativeapproachforanalysingbonemodellingpatternsfromcraniofacialsurfacesinhominins AT gonzalezpaulanatalia aquantitativeapproachforanalysingbonemodellingpatternsfromcraniofacialsurfacesinhominins AT bernalvaleria aquantitativeapproachforanalysingbonemodellingpatternsfromcraniofacialsurfacesinhominins AT brachettaaportanatalia quantitativeapproachforanalysingbonemodellingpatternsfromcraniofacialsurfacesinhominins AT gonzalezpaulanatalia quantitativeapproachforanalysingbonemodellingpatternsfromcraniofacialsurfacesinhominins AT bernalvaleria quantitativeapproachforanalysingbonemodellingpatternsfromcraniofacialsurfacesinhominins |
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Repositorios |
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1764820487917010947 |