Table 2.
EF | IF | |||||||
---|---|---|---|---|---|---|---|---|
Control | Premotor | Phasic | Tonic | Control | Premotor | Phasic | Tonic | |
MEP size (mV) | 2.26 ± 1.37 | 2.76 ± 1.45a | 3.79 ± 1.29a,b | 3.21 ± 1.35a,b,c | 2.20 ± 1.36 | 2.81 ± 1.50a | 3.86 ± 1.39a,b | 3.14 ± 1.38a,b,c |
MEP (% of control) | 100 | 133.13 ± 78.48 | 206.42 ± 117.50 | 165.45 ± 90.64 | 100 | 138.13 ± 69.54 | 214.84 ± 111.80 | 164.98 ± 79.30 |
bEMG (mV) | 0.022 ± 0.01 | 0.029 ± 0.01 | 0.07 ± 0.04 | 0.046 ± 0.02 | 0.021 ± 0.01 | 0.031 ± 0.02 | 0.066 ± 0.04 | 0.043 ± 0.02 |
Shown are mean values and SD (n = 12) for single-pulse MEP size, MEP size related to control MEP expressed in percent and the background EMG (bEMG) for both conditions (EF and IF) in the prime mover FDI muscle. Main effect of phase: significant difference (P < 0.05) for this phase in both conditions compared with control phase (a), compared with the premotor phase (b), and compared with the phasic phase (c). No interaction effect of focus x condition were found in FDI. EF = external focus, IF = internal focus of attention.