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Cross sectional data from Lebel et al. (2008, Lebel and Beaulieu 2009) showing robust FA increases in 4 major fiber tracts; note rapid change in FA in young school-aged children and variability in the pace at which FA in the different tracts approaches asymptote. Reprinted with permission from Lebel et al. (2008). “Microstructural maturation of the human brain from childhood to adulthood.” Neuroimage 40(3): 1044–1055
