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Human cortical folding across regions within individual brains follows universal scaling law.


ABSTRACT: Different cortical regions vary systematically in their morphology. Here we investigate if the scaling law of cortical morphology, which was previously demonstrated across both human subjects and mammalian species, still holds within a single cortex across different brain regions. By topologically correcting for regional curvature, we could analyse how different morphological parameters co-vary within single cortices. We show in over 1500 healthy individuals that, despite their morphological diversity, regions of the same cortex obey the same universal scaling law, and age morphologically at similar rates. In Alzheimer's disease, we observe a premature ageing in the morphological parameters that was nevertheless consistent with the scaling law. The premature ageing effect was most dramatic in the temporal lobe. Thus, while morphology can vary substantially across cortical regions, subjects, and species, it always does so in accordance with a common scaling law, suggesting that the underlying processes driving cortical gyrification are universal.

SUBMITTER: Wang Y 

PROVIDER: S-EPMC6527703 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Human cortical folding across regions within individual brains follows universal scaling law.

Wang Yujiang Y   Necus Joe J   Rodriguez Luis Peraza LP   Taylor Peter Neal PN   Mota Bruno B  

Communications biology 20190520


Different cortical regions vary systematically in their morphology. Here we investigate if the scaling law of cortical morphology, which was previously demonstrated across both human subjects and mammalian species, still holds within a single cortex across different brain regions. By topologically correcting for regional curvature, we could analyse how different morphological parameters co-vary within single cortices. We show in over 1500 healthy individuals that, despite their morphological div  ...[more]

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