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(a) scatter plot of mean fractional anisotropy of left and right superior longitudinal fasciculus for individual children, as a function of age. Dotted line is a quadratic fit (regression highly significant – see text); (b) scatter plot of the ratio of fractional anisotropy of left vs right superior longitudinal fasciculus for individual children, as a function of age. Dotted line is a quadratic fit (no significant age variation)
