Human cortical folding across regions within individual brains follows universal scaling law.
PMID 31123715 · Communications biology · 2019 · DOI 10.1038/s42003-019-0421-7
Authors: Yujiang Wang; Joe Necus; Luis Peraza Rodriguez; Peter Neal Taylor; Bruno Mota
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.
Aging, Premature; Alzheimer Disease; Cerebral Cortex; Female; Humans; Image Processing, Computer-Assisted; Magnetic Resonance Imaging; Male; Models, Statistical; Normal Distribution; Reproducibility of Results; Surface Properties
Cite
Yujiang Wang; Joe Necus; Luis Peraza Rodriguez; Peter Neal Taylor; Bruno Mota. Human cortical folding across regions within individual brains follows universal scaling law. Communications biology (2019). PMID 31123715. DOI 10.1038/s42003-019-0421-7.