Table 1. Subject demographics.

Group	n	Age Mean (SD)	IQ Mean (SD)	Race	Mean FD	Mean DVARS a	Mean DVARS b
Child	41(20F)	11.55 (0.82)	112.10 (13.17)	28(68%) white	0.64*	26.72	2.59
Early Adolescence	41(18F)	14.54 (0.91)	110.17 (10.94)	30(73%) white	0.20	21.97	2.17
Late Adolescence	53(28F)	17.89 (0.92)	112.51 (12.01)	44(83%) white	0.22	24.84	1.60
Adult	57(30F)	22.38 (1.83)	116.84 (13.18)	40(70%) white	0.18	22.97	2.43

^a DVARS calculated prior to wavelet despiking.

^b DVARS calculated on motion time series after wavelet despiking. Large decreases indicate wavelet despiking was effective in mitigating head motion confounds.

* Mean FD was significantly greater in the child group compared to each other age group (p < 0.05, Tukey’s honest significant difference corrected for multiple comparisons). A one-way analysis of variance (ANOVA) was conducted between groups for mean DVARS before wavelet despiking (Mean DVARS ^a ) and again between groups after wavelet despiking (Mean DVARS ^b ), with no significant differences observed in either test (p > 0.05). Note FD is calculated prior to our motion correction procedure while the final DVARS values (Mean DVARs ^b ) are calculated after our motion correction procedure.

DVARS, root mean square derivative of fMRI timeseries; F, Female; FD, framewise displacement; SD, standard deviation.