Automatic, landmark-free quantification of 3D endocranial asymmetries in extant and fossil species: new insights into paleoneurology
Benoît Combès
(1)
,
Marc Fournier
(1)
,
José Braga
(2)
,
Antoine Balzeau
(3, 4)
,
Emmanuel Gilissen
(5, 6)
,
Francis Thackeray
(7)
,
Sylvain Prima
(1)
1
VisAGeS -
Vision, Action et Gestion d'informations en Santé
2 AMIS - Anthropologie Moléculaire et Imagerie de Synthèse
3 Equipe de Paléontologie Humaine [Paris]
4 Service Anthropologie et Préhistoire [Bruxelles]
5 Department of African Zoology [Tervuren]
6 Laboratoire d'histologie générale, de neuroanatomie et de neuropathologie [Bruxelles]
7 Dept. of Paleontology, Transvaal Museum
2 AMIS - Anthropologie Moléculaire et Imagerie de Synthèse
3 Equipe de Paléontologie Humaine [Paris]
4 Service Anthropologie et Préhistoire [Bruxelles]
5 Department of African Zoology [Tervuren]
6 Laboratoire d'histologie générale, de neuroanatomie et de neuropathologie [Bruxelles]
7 Dept. of Paleontology, Transvaal Museum
Marc Fournier
- Fonction : Auteur
- PersonId : 11878
- IdHAL : marc-fournier
- ORCID : 0000-0002-9256-0034
- IdRef : 071528482
Antoine Balzeau
- Fonction : Auteur
- PersonId : 174475
- IdHAL : antoine-balzeau
- ORCID : 0000-0002-4226-611X
- IdRef : 096255757
Résumé
The study of endocranial asymmetries of hominids is a central topic in paleoneurology. However, our knowledge about the emergence of these asymmetries during human evolution is still limited. This is partly due to the fact that, so far, these 3D asymmetries have been mostly analyzed using landmarks-based methods. Such methods are limited as they only provide a partial description of the anatomy and thus of the possible asymmetries. The endocranial anatomy may be better described by its whole contour, and the recent advent of computational tools allowing to process 3D free-form surfaces opens new tracks for automated and objective characterization of 3D endocranial asymmetries. One key problem before assessing the evolution of patterns of asymmetry in hominids is the identification of confounding factors such as age, sex and intra-specific variability. For this purpose, we use a new method for the automated quantification of 3D virtual endocranial shape of 60 Pan paniscus and 59 Pan troglodytes of different dental age and sex. 3D statistical analyzes are led to assess significantly asymmetrical areas on the endocasts within each population, and a comparison is made between the two populations. Several fossil hominin endocasts (such as Australopithecine species and fossil Homo species) are then reexamined in light of the previously estimated variability with these two extant Pan species. These new computational tools may offer a new way to address the question of how the typical endocranial asymmetries within modern humans (e.g. protrusions of the frontal and occipital lobes) emerged during evolution.
Domaines
Imagerie médicale Traitement des images [eess.IV] Traitement du signal et de l'image [eess.SP] Anthropologie biologique Traitement du signal et de l'image [eess.SP] Neurosciences [q-bio.NC]Format du dépôt | Notice |
---|---|
Type de dépôt | Communication dans un congrès |
Titre |
en
Automatic, landmark-free quantification of 3D endocranial asymmetries in extant and fossil species: new insights into paleoneurology
|
Résumé |
en
The study of endocranial asymmetries of hominids is a central topic in paleoneurology. However, our knowledge about the emergence of these asymmetries during human evolution is still limited. This is partly due to the fact that, so far, these 3D asymmetries have been mostly analyzed using landmarks-based methods. Such methods are limited as they only provide a partial description of the anatomy and thus of the possible asymmetries. The endocranial anatomy may be better described by its whole contour, and the recent advent of computational tools allowing to process 3D free-form surfaces opens new tracks for automated and objective characterization of 3D endocranial asymmetries. One key problem before assessing the evolution of patterns of asymmetry in hominids is the identification of confounding factors such as age, sex and intra-specific variability. For this purpose, we use a new method for the automated quantification of 3D virtual endocranial shape of 60 Pan paniscus and 59 Pan troglodytes of different dental age and sex. 3D statistical analyzes are led to assess significantly asymmetrical areas on the endocasts within each population, and a comparison is made between the two populations. Several fossil hominin endocasts (such as Australopithecine species and fossil Homo species) are then reexamined in light of the previously estimated variability with these two extant Pan species. These new computational tools may offer a new way to address the question of how the typical endocranial asymmetries within modern humans (e.g. protrusions of the frontal and occipital lobes) emerged during evolution.
|
Auteur(s) |
Benoît Combès
1
, Marc Fournier
1
, José Braga
2
, Antoine Balzeau
3, 4
, Emmanuel Gilissen
5, 6
, Francis Thackeray
7
, Sylvain Prima
1
1
VisAGeS -
Vision, Action et Gestion d'informations en Santé
( 11869 )
- IRISA, campus de Beaulieu F-35042 Rennes
- France
2
AMIS -
Anthropologie Moléculaire et Imagerie de Synthèse
( 445683 )
- 37 Allées Jules Guesde
31073 Toulouse
- France
3
Equipe de Paléontologie Humaine [Paris]
( 111297 )
- Département de Préhistoire 1, rue René Panhard 75013 PARIS
- France
4
Service Anthropologie et Préhistoire [Bruxelles]
( 85524 )
- 29 rue Vautier BE 1000 Bruxelles
- Belgique
5
Department of African Zoology [Tervuren]
( 176305 )
- Leuvensesteenweg 13 3080 Tervuren
- Belgique
6
Laboratoire d'histologie générale, de neuroanatomie et de neuropathologie [Bruxelles]
( 176306 )
- Campus Erasme, Bât. G2, niv. 7 CP620, route de Lennik 808, 1070 Bruxelles
- Belgique
7
Dept. of Paleontology, Transvaal Museum
( 50311 )
- Paul Kruger Street PO BOX 413, Pretoria
- Afrique du Sud
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Actes |
Oui
|
Invité |
Non
|
Langue du document |
Anglais
|
Titre de l'ouvrage |
80th annual meeting of the American Association of Physical Anthropologists
|
Audience |
Internationale
|
Date de publication |
2011-04
|
Page/Identifiant |
111
|
Titre du congrès |
80th annual meeting of the American Association of Physical Anthropologists
|
Date début congrès |
2011-04
|
Ville |
Minneapolis
|
Pays |
États-Unis
|
Domaine(s) |
|
Financement |
|
DOI | 10.1002/ajpa.21502 |
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