Table 4.
Post-hoc pairwise comparisons: paired t-tests (2-tailed) assessing differences in bilateral HG grey matter volume between professional musicians, amateurs and non-musicians, adjusted for age, sex, whole brain cortical volume and scanner. Comparisons are corrected for multiple comparisons (Bonferroni). *Indicates significance at α = 0.05.
| Pairwise Comparisons | Mean difference | Std. Error | t-value | p-value |
|---|---|---|---|---|
| Professionals Vs Amateurs | 29.2 mm3 | 32.5 mm3 | 0.898 | 1.000 |
| Professionals Vs Non-Musicians | 138.4 mm3 | 38.7 mm3 | 3.576 | 0.001* |
| Amateurs Vs Non-Musicians | 109.2 mm3 | 39.7 mm3 | 2.751 | 0.020* |