Adolescent development of multiscale cortical wiring and functional connectivity in the human connectome
Park, B.-y.; Paquola, C.; Bethlehem, R. A. I.; Benkarim, O.; Neuroscience in Psychiatry Network (NSPN) Consortium, ; Misic, B.; Smallwood, J.; Bullmore, E. T.; Bernhardt, B.
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AO_SCPLOWBSTRACTC_SCPLOWAdolescence is a time of profound changes in the physical wiring and function of the brain. Here, we analyzed structural and functional brain network development in an accelerated longitudinal cohort spanning 14-25 years (n = 199). Core to our work was an advanced in vivo model of cortical wiring incorporating MRI features of cortico-cortical proximity, microstructural similarity, and white matter tractography. Longitudinal analyses assessing age-related changes in cortical wiring identified a continued differentiation of multiple cortico-cortical structural networks in youth. Studying resting-state functional MRI measures in the same participants at baseline, we found that regions with more similar structural wiring were more likely to be functionally coupled. Moreover, longitudinal structural wiring changes, particularly between sensory/unimodal and default mode networks, were reflected in tendencies for increased differentiation in brain function. These longitudinal findings provide new insights into adolescent development of human brain structure and function, illustrating how structural wiring interacts with the maturation of macroscale functional hierarchies.
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