Morphological invariant of the midsagittal deep brain anatomy between humans and African great apes.
Objectives: Efforts have been made to mathematically reconstruct the brain morphology from human fossil crania to clarify the evolutionary changes in the brain that are associated with the emergence of human cognitive ability. However, because conventional reconstruction methods are based solely on...
| Published in: | American Journal of Biological Anthropology Vol. 177; no. 1; pp. 39 - 48 |
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| Main Authors: | , , , |
| Format: | Article |
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Wiley-Blackwell
Jan2022
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| Subjects: | |
| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=155837661&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 155837661 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 26927691 MYY3 jtl: American Journal of Biological Anthropology issn: 26927691 maglogo: N pubinfo: dt: Jan2022 vid: 177 iid: 1 pid: 480 pub: Wiley-Blackwell artinfo: ui: 155837661 10.1002/ajpa.24414 ppf: 39 ppct: 9 formats: tig: atl: Morphological invariant of the midsagittal deep brain anatomy between humans and African great apes. aug: au: Amano, Hideki Kochiyama, Takanori Tanabe, Hiroki C. Ogihara, Naomichi affil: Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan Department of Cognitive Neuroscience, Advanced Telecommunications Research Institute International, Kyoto, Japan Department of Cognitive and Psychological Sciences, Graduate School of Informatics, Nagoya University, Nagoya, Japan su: Deep brain stimulation Brain stimulation Movement disorder treatments Fossils Brain function localization Neural stimulation sug: subj: Deep brain stimulation Brain stimulation Movement disorder treatments Fossils Brain function localization Neural stimulation keyword: corpus callosum endocranium fossil brain reconstruction geometric morphometrics thin‐plate spline function corpus callosum endocranium fossil brain reconstruction geometric morphometrics thin‐plate spline function ab: Objectives: Efforts have been made to mathematically reconstruct the brain morphology from human fossil crania to clarify the evolutionary changes in the brain that are associated with the emergence of human cognitive ability. However, because conventional reconstruction methods are based solely on the endocranial shape, deep brain structures cannot be estimated with sufficient accuracy. Our study aims to investigate the possible morphological correspondence between the cranial and deep brain morphologies based on humans and African great apes, with the goal of a more precise reconstruction of fossil brains. Materials and Methods: Midsagittal endocranial and deep brain landmarks were obtained from magnetic resonance images of humans and three species of African great apes. The average midsagittal endocranial profile of all four species was calculated after Procrustes registration. The spatial deformation function from each of the endocranial profiles to the average endocranial profile was defined, and the brain landmarks enclosed in the endocranium were transformed using the deformation function to evaluate the interspecific variabilities of the positions of the brain landmarks on the average endocranial profile. Results: The interspecific differences in the shape‐normalized positions of the corpus callosum, anterior commissure, thalamus center, and brainstem were approximately within the range of 2% of the human cranial length, indicating that the interspecific variabilities of the positions of these deep brain structures were relatively small among the four species. Discussion: Such an invariant relationship of the deep brain structure and the endocranium that encloses the brain can potentially be utilized to reconstruct the brains of fossil hominins. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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