Cross-species cortical alignment identifies different types of anatomical reorganization in the primate temporal lobe
Evolutionary adaptations of temporo-parietal cortex are considered to be a critical specialization of the human brain. Cortical adaptations, however, can affect different aspects of brain architecture, including local expansion of the cortical sheet or changes in connectivity between cortical areas....
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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eLife Sciences Publications Ltd
2020-03-01
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| Series: | eLife |
| Subjects: | |
| Online Access: | https://elifesciences.org/articles/53232 |
| _version_ | 1811236179163480064 |
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| author | Nicole Eichert Emma C Robinson Katherine L Bryant Saad Jbabdi Mark Jenkinson Longchuan Li Kristine Krug Kate E Watkins Rogier B Mars |
| author_facet | Nicole Eichert Emma C Robinson Katherine L Bryant Saad Jbabdi Mark Jenkinson Longchuan Li Kristine Krug Kate E Watkins Rogier B Mars |
| author_sort | Nicole Eichert |
| collection | DOAJ |
| description | Evolutionary adaptations of temporo-parietal cortex are considered to be a critical specialization of the human brain. Cortical adaptations, however, can affect different aspects of brain architecture, including local expansion of the cortical sheet or changes in connectivity between cortical areas. We distinguish different types of changes in brain architecture using a computational neuroanatomy approach. We investigate the extent to which between-species alignment, based on cortical myelin, can predict changes in connectivity patterns across macaque, chimpanzee, and human. We show that expansion and relocation of brain areas can predict terminations of several white matter tracts in temporo-parietal cortex, including the middle and superior longitudinal fasciculus, but not the arcuate fasciculus. This demonstrates that the arcuate fasciculus underwent additional evolutionary modifications affecting the temporal lobe connectivity pattern. This approach can flexibly be extended to include other features of cortical organization and other species, allowing direct tests of comparative hypotheses of brain organization. |
| first_indexed | 2024-04-12T12:04:30Z |
| format | Article |
| id | doaj.art-5bd1b7d95f11456398c3edaebf436f95 |
| institution | Directory Open Access Journal |
| issn | 2050-084X |
| language | English |
| last_indexed | 2024-04-12T12:04:30Z |
| publishDate | 2020-03-01 |
| publisher | eLife Sciences Publications Ltd |
| record_format | Article |
| series | eLife |
| spelling | doaj.art-5bd1b7d95f11456398c3edaebf436f952022-12-22T03:33:45ZengeLife Sciences Publications LtdeLife2050-084X2020-03-01910.7554/eLife.53232Cross-species cortical alignment identifies different types of anatomical reorganization in the primate temporal lobeNicole Eichert0https://orcid.org/0000-0001-7818-5787Emma C Robinson1Katherine L Bryant2https://orcid.org/0000-0003-1045-4543Saad Jbabdi3https://orcid.org/0000-0003-3234-5639Mark Jenkinson4https://orcid.org/0000-0001-6043-0166Longchuan Li5https://orcid.org/0000-0002-0559-0754Kristine Krug6https://orcid.org/0000-0001-7119-9350Kate E Watkins7https://orcid.org/0000-0002-2621-482XRogier B Mars8https://orcid.org/0000-0001-6302-8631Wellcome Centre for Integrative Neuroimaging, Centre for Functional MRI of the Brain (FMRIB), Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, United KingdomBiomedical Engineering Department, King’s College London, London, United KingdomDonders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, NetherlandsWellcome Centre for Integrative Neuroimaging, Centre for Functional MRI of the Brain (FMRIB), Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, United KingdomWellcome Centre for Integrative Neuroimaging, Centre for Functional MRI of the Brain (FMRIB), Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, United KingdomMarcus Autism Center, Children's Healthcare of Atlanta, Emory University, Atlanta, United StatesDepartment of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom; Institute of Biology, Otto-von-Guericke-Universität Magdeburg, Magdeburg, Germany; Leibniz-Insitute for Neurobiology, Magdeburg, GermanyWellcome Centre for Integrative Neuroimaging, Department of Experimental Psychology, University of Oxford, Oxford, United KingdomWellcome Centre for Integrative Neuroimaging, Centre for Functional MRI of the Brain (FMRIB), Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom; Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, NetherlandsEvolutionary adaptations of temporo-parietal cortex are considered to be a critical specialization of the human brain. Cortical adaptations, however, can affect different aspects of brain architecture, including local expansion of the cortical sheet or changes in connectivity between cortical areas. We distinguish different types of changes in brain architecture using a computational neuroanatomy approach. We investigate the extent to which between-species alignment, based on cortical myelin, can predict changes in connectivity patterns across macaque, chimpanzee, and human. We show that expansion and relocation of brain areas can predict terminations of several white matter tracts in temporo-parietal cortex, including the middle and superior longitudinal fasciculus, but not the arcuate fasciculus. This demonstrates that the arcuate fasciculus underwent additional evolutionary modifications affecting the temporal lobe connectivity pattern. This approach can flexibly be extended to include other features of cortical organization and other species, allowing direct tests of comparative hypotheses of brain organization.https://elifesciences.org/articles/53232Chimpanzeecross-species registrationcortical myelinconnectivitytractographytemporal lobe |
| spellingShingle | Nicole Eichert Emma C Robinson Katherine L Bryant Saad Jbabdi Mark Jenkinson Longchuan Li Kristine Krug Kate E Watkins Rogier B Mars Cross-species cortical alignment identifies different types of anatomical reorganization in the primate temporal lobe eLife Chimpanzee cross-species registration cortical myelin connectivity tractography temporal lobe |
| title | Cross-species cortical alignment identifies different types of anatomical reorganization in the primate temporal lobe |
| title_full | Cross-species cortical alignment identifies different types of anatomical reorganization in the primate temporal lobe |
| title_fullStr | Cross-species cortical alignment identifies different types of anatomical reorganization in the primate temporal lobe |
| title_full_unstemmed | Cross-species cortical alignment identifies different types of anatomical reorganization in the primate temporal lobe |
| title_short | Cross-species cortical alignment identifies different types of anatomical reorganization in the primate temporal lobe |
| title_sort | cross species cortical alignment identifies different types of anatomical reorganization in the primate temporal lobe |
| topic | Chimpanzee cross-species registration cortical myelin connectivity tractography temporal lobe |
| url | https://elifesciences.org/articles/53232 |
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