Cranial vault thickness measurement and distribution: A study with a magnetic calliper

Cranial vault thickness is a widely studied variable in physical anthropology. However, direct physical measurements are difficult to assess in complete skulls, where the endocranial surface is not easily accessible for standard callipers. Computed tomography represents the best alternative, but is...

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Detalhes bibliográficos
Autores: Del Olmo Lianes, Irene, Bruner, Emiliano, Molina Moreno, María, Cambra Moo, Óscar, González Martín, Armando
Formato: artículo
Fecha de publicación:2019
País:España
Recursos:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/715651
Acesso em linha:http://hdl.handle.net/10486/715651
https://dx.doi.org/10.1537/ase.190306
Access Level:acceso abierto
Palavra-chave:Bone thickness
Magnetic measurement
Morphometrics
Skull
Biología y Biomedicina / Biología
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spelling Cranial vault thickness measurement and distribution: A study with a magnetic calliperDel Olmo Lianes, IreneBruner, EmilianoMolina Moreno, MaríaCambra Moo, ÓscarGonzález Martín, ArmandoBone thicknessMagnetic measurementMorphometricsSkullBiología y Biomedicina / BiologíaCranial vault thickness is a widely studied variable in physical anthropology. However, direct physical measurements are difficult to assess in complete skulls, where the endocranial surface is not easily accessible for standard callipers. Computed tomography represents the best alternative, but is expensive and not always available for many field or museum samples. In this study we present a method for the measurement of cranial vault thickness based on magnetism. We measured bone thickness at 71 points of the vault in 30 human skulls with the use of a portable magnetic calliper, which offers a simple, direct, non-invasive, and cost-effective methodology. Magnetic measures were compared with physical measures sampled with a traditional spreading calliper, and error analysis was assessed. Thickness distribution was evaluated and represented in bidimensional maps after spatial interpolation. The two types of callipers provide the same results, suggesting that the magnetic calliper can be used in those situations in which a traditional calliper is not applicable. In accordance with previously published data, the most variable and thickest bones in our sample were the frontal and the occipital bones, and cranial vault thickness distribution follows a pattern of increasing thickness from lateral regions of the vault to the sagittal plane. The magnetic calliper is a reliable and effective tool to measure cranial thickness in those cases in which the endocranial surface is not easily accessible, and where expensive technology cannot be employed for economic or practical reasonsThis research was supported by the Spanish Government (CGL2015-65387-C3-3-P, MAT2013-48426-C2-1-R, CGL2015-68363-P, HAR2016-78036-P, HAR2016-74846P, HAR2017-82755-P, HAR2017-83004-P)The Anthropological Society of NipponDepartamento de BiologíaFacultad de CienciasLaboratorio de Poblaciones del Pasado (EXP C-143)20192019-04-25research articlehttp://purl.org/coar/resource_type/c_2df8fbb1AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/715651https://dx.doi.org/10.1537/ase.190306reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7156512026-06-23T12:46:27Z
dc.title.none.fl_str_mv Cranial vault thickness measurement and distribution: A study with a magnetic calliper
title Cranial vault thickness measurement and distribution: A study with a magnetic calliper
spellingShingle Cranial vault thickness measurement and distribution: A study with a magnetic calliper
Del Olmo Lianes, Irene
Bone thickness
Magnetic measurement
Morphometrics
Skull
Biología y Biomedicina / Biología
title_short Cranial vault thickness measurement and distribution: A study with a magnetic calliper
title_full Cranial vault thickness measurement and distribution: A study with a magnetic calliper
title_fullStr Cranial vault thickness measurement and distribution: A study with a magnetic calliper
title_full_unstemmed Cranial vault thickness measurement and distribution: A study with a magnetic calliper
title_sort Cranial vault thickness measurement and distribution: A study with a magnetic calliper
dc.creator.none.fl_str_mv Del Olmo Lianes, Irene
Bruner, Emiliano
Molina Moreno, María
Cambra Moo, Óscar
González Martín, Armando
author Del Olmo Lianes, Irene
author_facet Del Olmo Lianes, Irene
Bruner, Emiliano
Molina Moreno, María
Cambra Moo, Óscar
González Martín, Armando
author_role author
author2 Bruner, Emiliano
Molina Moreno, María
Cambra Moo, Óscar
González Martín, Armando
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Biología
Facultad de Ciencias
Laboratorio de Poblaciones del Pasado (EXP C-143)
dc.subject.none.fl_str_mv Bone thickness
Magnetic measurement
Morphometrics
Skull
Biología y Biomedicina / Biología
topic Bone thickness
Magnetic measurement
Morphometrics
Skull
Biología y Biomedicina / Biología
description Cranial vault thickness is a widely studied variable in physical anthropology. However, direct physical measurements are difficult to assess in complete skulls, where the endocranial surface is not easily accessible for standard callipers. Computed tomography represents the best alternative, but is expensive and not always available for many field or museum samples. In this study we present a method for the measurement of cranial vault thickness based on magnetism. We measured bone thickness at 71 points of the vault in 30 human skulls with the use of a portable magnetic calliper, which offers a simple, direct, non-invasive, and cost-effective methodology. Magnetic measures were compared with physical measures sampled with a traditional spreading calliper, and error analysis was assessed. Thickness distribution was evaluated and represented in bidimensional maps after spatial interpolation. The two types of callipers provide the same results, suggesting that the magnetic calliper can be used in those situations in which a traditional calliper is not applicable. In accordance with previously published data, the most variable and thickest bones in our sample were the frontal and the occipital bones, and cranial vault thickness distribution follows a pattern of increasing thickness from lateral regions of the vault to the sagittal plane. The magnetic calliper is a reliable and effective tool to measure cranial thickness in those cases in which the endocranial surface is not easily accessible, and where expensive technology cannot be employed for economic or practical reasons
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-04-25
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/715651
https://dx.doi.org/10.1537/ase.190306
url http://hdl.handle.net/10486/715651
https://dx.doi.org/10.1537/ase.190306
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv The Anthropological Society of Nippon
publisher.none.fl_str_mv The Anthropological Society of Nippon
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,228081

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