Table 7.
Effects and interactions of vocabulary and years of education in semantic fluency and finger tapping.
| Voxels | P-value | Z-Values peak | MNI coordinates | Structures | |||
|---|---|---|---|---|---|---|---|
| X | Y | Z | |||||
| Vocabulary | |||||||
| Semantic Fluency | |||||||
| The negative effect for both groups | 589 | 0.00495 | 3.88 | 10 | −48 | 6 | R visual cx BA 17 and BA 18, cingulum, optic radiation, callosal body. |
| Finger Tapping | |||||||
| Interaction O > Y | 555 | 0.00577 | 4.02 | −46 | 24 | 36 | L Broca’s area BA 44 and BA 45, middle frontal gyrus, superior frontal gyrus. |
| 515 | 0.00901 | 4.18 | 24 | 20 | 56 | R superior frontal gyrus, middle frontal gyrus, premotor cx BA 6. | |
| 477 | 0.0139 | 3.96 | −42 | −84 | 30 | L inferior parietal lobule, lateral occipital cx. | |
| Years of Education | |||||||
| Semantic Fluency | |||||||
| - | - | ns | ns | - | - | ||
| Finger Tapping | |||||||
| Interaction O > Y | 402 | 0.0355 | 3.96 | 14 | −72 | 34 | R cuneal cx, L cingulate gyrus, callosal body, RL precuneus, superior parietal lobule. |
Y, young group; O, older group; Y > O, steeper interaction slope for the young group; O > Y, steeper interaction slope for the older adult group. All the comparisons were performed controlling for MMSE score and age.