Table 2.

Comparison of behavioral performances.

Stroke patients	Baseline PI	t-value	p-value	PI at the end of learning	t-value	p-value	slope during learning	t-value	p-value	Classification
“naïve” (n = 20)	0.84 ± 0.10	N/A	N/A	1.06 ± 0.09	N/A	N/A	0.033 ± 0.034	N/A	N/A	8 shifters 12 fitters
Patient #12	0.78	−0.444	0.662	0.93	−0.203	0.841	0.038	0.144	0.887	Fitter
Patient #13	0.81	0.532	0.601	0.95	−0.171	0.866	0.013	−0.574	0.573	Fitter
Patient #15	0.99	1.419	0.172	1.40	0.561	0.581	0.059	0.775	0.448	Shifter

Comparison of the motor performance of the three stroke patients (#12, 13, and 15) who participated in our previous tDCS study (Lefebvre et al., 2013) to the performance of the 20 other stroke patients. Analysis with the Crawford and Howell statistical test to compare an individual score to a small population did not demonstrate statistically significant difference. PI, Performance Index; N/A, not applicable.