TABLE 3.
Peak activation details of brain areas with higher contrast responses in older than younger adults.
| Brain region | # of voxels | qFDR–corr | X | Y | Z | t-value |
| Idioms–random | ||||||
| L superior temporal gyrus | 866 | <0.001 | −58 | −12 | −4 | 5.81 |
| R insula | 275 | 0.010 | 36 | −2 | 16 | 5.79 |
| L insula | 301 | 0.008 | −34 | −8 | 16 | 4.42 |
| R postcentral gyrus | 484 | 0.001 | 44 | −26 | 56 | 4.48 |
| L superior frontal gyrus | 1395 | <0.001 | −22 | −2 | 60 | 4.65 |
| R middle temporal gyrus | 408 | 0.002 | 58 | −40 | 6 | 4.19 |
| Frequent–random | ||||||
| R supplementary motor area | 330 | 0.016 | 8 | −24 | 60 | 3.89 |
| L superior temporal gyrus | 313 | 0.016 | −58 | −36 | 18 | 4.17 |
| L paracentral lobule | 527 | 0.002 | −12 | −20 | 64 | 4.17 |
| Infrequent–random | ||||||
| R middle temporal gyrus | 458 | 0.002 | 58 | −50 | 4 | 4.14 |
| L postcentral gyrus | 274 | 0.017 | −42 | −28 | 58 | 4.26 |
| L superior temporal gyrus | 265 | 0.017 | −50 | −36 | 22 | 4.05 |
| Random–perceptual control | ||||||
| L superior frontal gyrus | 261 | 0.010 | −6 | 50 | 28 | 5.40 |
Whole-brain voxel-wise statistical significance was set at p < 0.001 (uncorrected) and cluster-wise corrected q < 0.05 False Discovery Rate (FDR). Coordinates of peak locations are in MNI space. L, Left; R, Right; # of voxels: Number of voxels in a cluster. qFDR–corr, cluster-level correct q-values using FDR.