Sulci mapping from human cranial endocasts
Key questions in paleoneurology concern the timing and emergence of derived cerebral features within the human lineage. Endocasts are replicas of the internal table of the bony braincase that are widely used in paleoneurology as a proxy for reconstructing a timeline for hominin brain evolution in th...
| Autores: | ; ; ; ; |
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| Tipo de documento: | Artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:ddd.uab.cat:265665 |
| Acceso en línea: | https://ddd.uab.cat/record/265665 https://dx.doi.org/urn:doi:10.1002/hbm.25964 |
| Nivel de acceso: | Acceso abierto |
| Palabra clave: | Atlas Density map Human cortex Micro-ct Sulcal pattern Virtual endocasts |
| _version_ | 1878735074557427712 |
|---|---|
| author | De Jager, Edwin|||0000-0003-3199-8566 |
| author2 | Risser, Laurent Mescam, Muriel Fonta, Caroline|||0000-0001-6326-4044 Beaudet, Amélie|||0000-0002-9363-5966 |
| author2_role | author author author author |
| author_browse | Beaudet, Amélie|||0000-0002-9363-5966 De Jager, Edwin|||0000-0003-3199-8566 Fonta, Caroline|||0000-0001-6326-4044 Mescam, Muriel Risser, Laurent |
| author_facet | De Jager, Edwin|||0000-0003-3199-8566 Risser, Laurent Mescam, Muriel Fonta, Caroline|||0000-0001-6326-4044 Beaudet, Amélie|||0000-0002-9363-5966 |
| author_role | author |
| collection | Dipòsit Digital de Documents de la UAB |
| description | Key questions in paleoneurology concern the timing and emergence of derived cerebral features within the human lineage. Endocasts are replicas of the internal table of the bony braincase that are widely used in paleoneurology as a proxy for reconstructing a timeline for hominin brain evolution in the fossil record. The accurate identification of cerebral sulci imprints in endocasts is critical for assessing the topographic extension and structural organisation of cortical regions in fossil hominins. High-resolution imaging techniques combined with established methods based on population-specific brain atlases offer new opportunities for tracking detailed endocranial characteristics. This study provides the first documentation of sulcal pattern imprints from the superolateral surface of the cerebrum using a population-based atlas technique on extant human endocasts. Human crania from the Pretoria Bone Collection (South Africa) were scanned using micro-CT. Endocasts were virtually extracted, and sulci were automatically detected and manually labelled. A density map method was applied to project all the labels onto an averaged endocast to visualise the mean distribution of each identified sulcal imprint. This method allowed for the visualisation of inter-individual variation of sulcal imprints, for example, frontal lobe sulci, correlating with previous brain-MRI studies and for the first time the extensive overlapping of imprints in historically debated areas of the endocast (e.g. occipital lobe). In providing an innovative, non-invasive, observer-independent method to investigate human endocranial structural organisation, our analytical protocol introduces a promising perspective for future research in paleoneurology and for discussing critical hypotheses on the evolution of cognitive abilities among hominins. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_7576a0f2c43d65fbdef6332f63c1bbce |
| institution | Universitat Autònoma de Barcelona |
| instname_str | Universitat Autònoma de Barcelona |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:ddd.uab.cat:265665 |
| publishDate | 2022 |
| publishDateSort | 2022 |
| reponame_str | Dipòsit Digital de Documents de la UAB |
| spelling | Sulci mapping from human cranial endocasts A powerful tool to study hominin brain evolution De Jager, Edwin|||0000-0003-3199-8566 Risser, Laurent Mescam, Muriel Fonta, Caroline|||0000-0001-6326-4044 Beaudet, Amélie|||0000-0002-9363-5966 Atlas Density map Human cortex Micro-ct Sulcal pattern Virtual endocasts Key questions in paleoneurology concern the timing and emergence of derived cerebral features within the human lineage. Endocasts are replicas of the internal table of the bony braincase that are widely used in paleoneurology as a proxy for reconstructing a timeline for hominin brain evolution in the fossil record. The accurate identification of cerebral sulci imprints in endocasts is critical for assessing the topographic extension and structural organisation of cortical regions in fossil hominins. High-resolution imaging techniques combined with established methods based on population-specific brain atlases offer new opportunities for tracking detailed endocranial characteristics. This study provides the first documentation of sulcal pattern imprints from the superolateral surface of the cerebrum using a population-based atlas technique on extant human endocasts. Human crania from the Pretoria Bone Collection (South Africa) were scanned using micro-CT. Endocasts were virtually extracted, and sulci were automatically detected and manually labelled. A density map method was applied to project all the labels onto an averaged endocast to visualise the mean distribution of each identified sulcal imprint. This method allowed for the visualisation of inter-individual variation of sulcal imprints, for example, frontal lobe sulci, correlating with previous brain-MRI studies and for the first time the extensive overlapping of imprints in historically debated areas of the endocast (e.g. occipital lobe). In providing an innovative, non-invasive, observer-independent method to investigate human endocranial structural organisation, our analytical protocol introduces a promising perspective for future research in paleoneurology and for discussing critical hypotheses on the evolution of cognitive abilities among hominins. https://ddd.uab.cat/record/265665 https://dx.doi.org/urn:doi:10.1002/hbm.25964 |
| spellingShingle | Sulci mapping from human cranial endocasts De Jager, Edwin|||0000-0003-3199-8566 Atlas Density map Human cortex Micro-ct Sulcal pattern Virtual endocasts |
| title | Sulci mapping from human cranial endocasts |
| title_full | Sulci mapping from human cranial endocasts |
| title_fullStr | Sulci mapping from human cranial endocasts |
| title_full_unstemmed | Sulci mapping from human cranial endocasts |
| title_short | Sulci mapping from human cranial endocasts |
| title_sort | Sulci mapping from human cranial endocasts |
| topic | Atlas Density map Human cortex Micro-ct Sulcal pattern Virtual endocasts |
| topic_facet | Atlas Density map Human cortex Micro-ct Sulcal pattern Virtual endocasts |
| url | https://ddd.uab.cat/record/265665 https://dx.doi.org/urn:doi:10.1002/hbm.25964 |