Table 1.
Positive correlation between GM volume changes and (A) sequence-specific motor skill learning in a SPFT as well as (B) sequence-unspecific performance improvements (day 5 vs. day 1 [%]).
| GM volume changes | Hemisphere | MNI coordinates (x, y, z) | T-score | Cluster size | z-score | p-value |
|---|---|---|---|---|---|---|
| SEQUENCE-SPECIFIC MOTOR SKILL LEARNING | ||||||
| M1 (BA 4) | L | −34, −24, 68 | 7.81 | 833 | 4.22 | 0.006 (SVC) |
| DLPFC (BA 9) | R | 48, 25, 34 | 7.76 | 2695* | 4.19 | 0.0001 |
| Ventral PMC (BA 6) | R | 51, 4, 32 | 7.72 | 2695* | 4.18 | 0.0001 |
| SEQUENCE-UNSPECIFIC PERFORMANCE IMPROVEMENTS | ||||||
| DLPFC (BA9) | R | 16, 48, 35 | 14.39 | 3500 | 5.24 | 0.0001 |
| SFG (BA8) | L | −14, 26, 56 | 5.99 | 1969 | 3.71 | 0.0001 |
| MFG (BA8) | R | 36, 27, 42 | 13.53 | 5790 | 5.14 | 0.0001 |
| Dorsal PMC (BA6) | L | −30, −11, 60 | 6.43 | 818 | 3.84 | 0.049 |
| IFG (BA44) | L | −54, 13, 30 | 5.77 | 1102 | 3.64 | 0.013 |
L, left; R, right; SVC, small volume correction.
p-values represent results with non-stationary correction on a cluster-level (p < 0.05, FWE-corrected).
*
Indicates presence of sub-clusters within one cluster.