Journal article
Mapping cortical brain asymmetry in 17,141 healthy individuals worldwide via the ENIGMA Consortium
Proceedings of the National Academy of Sciences - PNAS, Vol.115(22), pp.E5154-E5163
05/29/2018
DOI: 10.1073/pnas.1718418115
PMCID: PMC5984496
PMID: 29764998
Abstract
Hemispheric asymmetry is a cardinal feature of human brain organization. Altered brain asymmetry has also been linked to some cognitive and neuropsychiatric disorders. Here, the ENIGMA (Enhancing NeuroImaging Genetics through Meta-Analysis) Consortium presents the largest-ever analysis of cerebral cortical asymmetry and its variability across individuals. Cortical thickness and surface area were assessed in MRI scans of 17,141 healthy individuals from 99 datasets worldwide. Results revealed widespread asymmetries at both hemispheric and regional levels, with a generally thicker cortex but smaller surface area in the left hemisphere relative to the right. Regionally, asymmetries of cortical thickness and/or surface area were found in the inferior frontal gyrus, transverse temporal gyrus, parahippocampal gyrus, and entorhinal cortex. These regions are involved in lateralized functions, including language and visuospatial processing. In addition to population-level asymmetries, variability in brain asymmetry was related to sex, age, and intracranial volume. Interestingly, we did not find significant associations between asymmetries and handedness. Finally, with two independent pedigree datasets (
= 1,443 and 1,113, respectively), we found several asymmetries showing significant, replicable heritability. The structural asymmetries identified and their variabilities and heritability provide a reference resource for future studies on the genetic basis of brain asymmetry and altered laterality in cognitive, neurological, and psychiatric disorders.
Details
- Title: Subtitle
- Mapping cortical brain asymmetry in 17,141 healthy individuals worldwide via the ENIGMA Consortium
- Creators
- Xiang-Zhen KongSamuel R Mathias - Yale UniversityTulio Guadalupe - Max Planck SocietyDavid C Glahn - Yale UniversityBarbara Franke - Donders Institute for Brain, Cognition and Behaviour, External OrganizationsFabrice Crivello - Commissariat à l'Énergie Atomique et aux Énergies AlternativesNathalie Tzourio-Mazoyer - Commissariat à l'Énergie Atomique et aux Énergies AlternativesSimon E Fisher - Max Planck SocietyPaul M Thompson - University of Southern CaliforniaClyde Francks - Max Planck SocietyENIGMA Laterality Working Group
- Contributors
- Beng Choon Ho (Contributor) - University of Iowa, Psychiatry
- Resource Type
- Journal article
- Publication Details
- Proceedings of the National Academy of Sciences - PNAS, Vol.115(22), pp.E5154-E5163
- DOI
- 10.1073/pnas.1718418115
- PMID
- 29764998
- PMCID
- PMC5984496
- NLM abbreviation
- Proc Natl Acad Sci U S A
- ISSN
- 0027-8424
- eISSN
- 1091-6490
- Publisher
- National Academy of Sciences
- Grant note
- P20 DA022539 / NIDA NIH HHS R00 MH091238 / NIMH NIH HHS R01 MH115357 / NIMH NIH HHS P50 DA016556 / NIDA NIH HHS P20 RR021938 / NCRR NIH HHS R01 MH085734 / NIMH NIH HHS U24 RR021992 / NCRR NIH HHS G0500092 / Medical Research Council P20 GM103472 / NIGMS NIH HHS R01 MH117107 / NIMH NIH HHS K99 AA025401 / NIAAA NIH HHS R56 MH086654 / NIMH NIH HHS R01 MH086654 / NIMH NIH HHS UL1 DE019586 / NIDCR NIH HHS R01 AA013892 / NIAAA NIH HHS R01 DA018307 / NIDA NIH HHS R01 MH099064 / NIMH NIH HHS R01 EB006841 / NIBIB NIH HHS T32 DA022975 / NIDA NIH HHS Biotechnology and Biological Sciences Research Council R01 EB005846 / NIBIB NIH HHS R01 MH096773 / NIMH NIH HHS RC1 MH089257 / NIMH NIH HHS U54 EB020403 / NIBIB NIH HHS R01 DA015179 / NIDA NIH HHS 500236/Z/11/Z / Wellcome Trust MC_UU_00011/5 / Medical Research Council R01 MH094524 / NIMH NIH HHS R01 DA020726 / NIDA NIH HHS PL1 DA024859 / NIDA NIH HHS G1001245 / Medical Research Council K08 MH068540 / NIMH NIH HHS HHSN271200800009C / NIDA NIH HHS UL1 TR000128 / NCATS NIH HHS MR/K026992/1 / Medical Research Council R01 DA014100 / NIDA NIH HHS R01 EB000840 / NIBIB NIH HHS G0701120 / Medical Research Council
- Language
- English
- Date published
- 05/29/2018
- Academic Unit
- Psychiatry
- Record Identifier
- 9984280878002771
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