Link to bioRxiv paper:
http://biorxiv.org/cgi/content/short/2022.09.15.508133v1?rss=1
Authors: Galdi, P., Blesa Cabez, M., Farrugia, C., Vaher, K., Williams, L. Z. J., Sullivan, G., Stoye, D. Q., Quigley, A. J., Makropoulos, A., Thrippleton, M. J., Bastin, M. E., Richardson, H., Whalley, H. C., Edwards, D., Bajada, C. J., Robinson, E. C., Boardman, J. P.
Abstract:
The early life environment programmes cortical architecture and cognition across the life course. A measure of cortical organisation that integrates information from multi-modal MRI and is unbound by arbitrary parcellations has proven elusive, which hampers efforts to uncover the perinatal origins of cortical health. Here, we use the Vogt-Bailey index to provide a fine-grained description of regional homogeneities and sharp variations in cortical microstructure based on feature gradients, and we investigate the impact of being born preterm on cortical development. Preterm infants have a homogeneous microstructure in temporal and occipital lobes, and the medial parietal, cingulate, and frontal cortices, compared with term infants. These observations replicated across two independent datasets and were robust to differences that remain in the data after matching samples and alignment of processing and quality control strategies. We conclude that cortical microstructural architecture is altered in preterm infants in a spatially distributed rather than localised fashion.
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