<p><b>Illustration of subtle surface non-linearities in the right cerebellar cortex of two individual participants (one TD and one ASD) as captured by the FD measure (<i>D</i></b><sub><b>2</b></sub><b>), (A)</b> TD male child (9.21 years old, UCLA 0051278 in ABIDE) and <b>(B)</b> ASD male child (10 years old, Yale 0050602 in ABIDE. The left panel shows the bilateral cerebellums in the coronal plane whereas the right panel shows a rendering of the right cerebellar cortex for each participant and its corresponding log-log plot. Note that the final slope estimate (i.e., the FD value) is higher for the TD participant, with higher <i>R</i><sup>2</sup> and lower root mean square error (RMSE), indicating a better fit for TD individual relative to the participant with ASD.</p
