Efficacy and Interindividual Variability in Motor-Cortex Plasticity following Anodal tDCS and Paired-Associative Stimulation

Table 2

Baseline comparisons of the dependent variables in both experimental setups. Data (untransformed) presented as mean ± standard deviation (SP: single-pulse measures; PP: paired-pulse measures).

Baseline values	Anodal tDCS	PAS	value
RMT (%) SP	33 ± 6	33 ± 6	0.538
S1mV (%) SP	42 ± 8	42 ± 9	0.305
RMT (%) PP	42 ± 8	42 ± 8	0.540
S1mV (%) PP	52 ± 9	52 ± 10	0.815
1 mV MEP (mV)	1.074 ± 0.23	1.073 ± 0.26	0.953
2 ms SICI (mV)	0.445 ± 0.37	0.355 ± 0.27	0.129
3 ms SICI (mV)	0.371 ± 0.29	0.451 ± 0.50	0.570
7 ms ICF (mV)	1.371 ± 0.56	1.314 ± 0.74	0.571
9 ms ICF (mV)	1.589 ± 0.61	1.769 ± 0.92	0.469
12 ms ICF (mV)	1.637 ± 0.71	1.795 ± 0.93	0.560
I/O (90% RMT) (mV)	0.422 ± 0.03	0.053 ± 0.06	0.549
I/O (110% RMT) (mV)	0.489 ± 0.38	0.420 ± 0.37	0.300
I/O (130% RMT) (mV)	1.664 ± 0.97	1.946 ± 1.27	0.319