Table 2.

Sample size and motion parameters (mean, SD) of all age groups for each analysisa

AnalysesGroupSample sizeMean FDAbsolute movement in FDData length (min)
Age-related change in concurrent relations between behavior and brain4 yr380.21 (0.10)0.24 (0.19)6.56 (0.58)
5 yr590.23 (0.12)0.24 (0.13)6.40 (0.56)
6 yr770.20 (0.10)0.22 (0.14)6.59 (0.48)
7 yr580.20 (0.09)0.23 (0.12)6.54 (0.52)
8 yr610.19 (0.10)0.20 (0.11)6.64 (0.41)
Behavioral change predicting brainYoung cohort380.18 (0.09)0.18 (0.10)6.71 (0.39)
Old cohort360.17 (0.08)0.18 (0.08)6.71 (0.30)
Brain predicting behavioral changeYoung cohort330.22 (0.10)0.26 (0.20)6.53 (0.59)
Old cohort310.21 (0.11)0.24 (0.14)6.50 (0.54)
  • aThere were no significant differences between groups in all motion parameters.