Sensorimotor Robotic Measures of tDCS- and HD-tDCS-Enhanced Motor Learning in Children

Table 1

Stimulation group	Age (SD)	Laterality index (SD)	Sex F : M	Baseline PPTL (SD)	Baseline PPTR (SD)	Baseline PPTL vs. PPTR
Sham	15.8 (1.3)	81.9 (22.8)	3 : 5	13.8 (1.3)	15.2 (1.9)
tDCS	15.9 (1.5)	82.5 (13.1)	6 : 2	13.5 (1.3)	15.2 (1.9)
HD-tDCS	14.8 (2.0)	81.3 (14.6)	4 : 4	13.9 (1.9)	15.8 (1.6)
Mean	15.5 (1.7)	81.9 (16.6)	13 : 11	13.8 (1.5)	15.4 (1.7)
Between groups						—

Age = age in years at enrollment; laterality index measured through the modified Edinburgh handedness inventory; baseline PPT_L = left-hand Purdue pegboard score measured at baseline; baseline PPT_R = right-hand Purdue pegboard score measured at baseline.