Brain cortical volume and area from Freesurfer's parcellation in a sample of healthy volunteers from South America

This dataset aims to deepen the analysis of cortical gyral and sulcal asymmetry of the entire cerebral cortex of healthy adult individuals by quantifying the gray matter content of the right and left hemispheres in a reference sample from South America. The subjects were sampled from populations scarcely represented in MRI research, which tends to be biased towards groups of European ancestry from Europe and North America. In contrast, the population under study is an admixture of Native American, European, and African components that contributed to a variable extent to their gene pool. Consequently, this study will add to expanding the diversity in brain morphometric data and the construction of more population-representative references.