Table 2.
Task-specific MI abilities.
| Pre 1 | Post 1 | Pre 2 | Post 2 | Pre 3 | Post 3 | Retention | ||
|---|---|---|---|---|---|---|---|---|
| Vividness | a-tDCS | 2.93 ± 0.65 | 3.03 ± 0.79 | 3.13 ± 0.64 | 3.40 ± 0.66 | 3.17 ± 0.70 | 3.50 ± 0.71 | 3.20 ± 0.88 |
| sham-tDCS | 3.43 ± 0.53 | 3.47 ± 0.58 | 3.30 ± 0.68 | 3.33 ± 0.59 | 3.44 ± 0.65 | 3.60 ± 0.63 | 3.47 ± 0.64 | |
| Temporal accuracy | a-tDCS | 0.88 ± 0.22 | 1.09 ± 0.48 | 0.96 ± 0.28 | 1.00 ± 0.44 | 0.94 ± 0.30 | 0.95 ± 0.31 | 1.00 ± 0.30 |
| sham-tDCS | 1.02 ± 0.38 | 1.19 ± 0.44 | 1.25 ± 0.36 | 1.15 ± 0.42 | 1.14. ± 0.30 | 1.15 ± 0.28 | 1.12 ± 0.25 |
Vividness: values (mean ± SD) of self-reported MI vividness scores during each mental test from 1 (no images/no kinesthetic perception) to 5 (images as clear as seeing the actual movement/perception as intense as if movement was actually performed). Temporal accuracy: values (mean ± SD) of indices of temporal accuracy (number of imagined keypresses/number of physical keypresses) during each test. The closer the index to 1, the better the temporal accuracy of MI.