Table 3.
Contrast of IFC vs. STC BOLD time-to-peak measures (Table 3A). Factors are between-subject factor Group (adults, children) and within-subject factors Area (IFC, STC) and Hemisphere (left, right). The Group × Area and the Group × Hemisphere interactions reveal distinct patterns of frontal vs. temporal activation time courses for both groups. A follow-up analysis for both Groups separately reveals the Area effect for each Group, although lower effect size in adults (ηp2 = .41) than in children (ηp2 = .65). The Hemisphere effect is based on a hemispheric distinction in children, but not in adults (Table 3B).
IFC = inferior frontal cortex, STC = superior temporal cortex, LH = left hemisphere, RH = right hemisphere.
| Table 3A: BOLD time-to-peak contrast for IFC vs. STC areas | |||
|---|---|---|---|
| Effect | df | F-value | p-value |
| Group | 1,23 | 18.98 | p < .001 |
| Area | 1,23 | 29.52 | p < .001 |
| Hemisphere | 1,23 | 7.21 | p < .05 |
| Group × Area | 1,23 | 7.61 | p < .05 |
| Group × Hemisphere | 1,23 | 9.24 | p < .01 |
| Area × Hemisphere | 1,23 | < 1 | |
| Group × Area × Hemisphere | 1,23 | 5.32 | p < .05 |
| Table 3B. Post-hoc analysis for IFC vs. STC separated by levels of factor Group | |||
| Adults | |||
|
| |||
| Effect | df | F-value | p-value |
|
| |||
| Area | 1,12 | 8.56 | p < .05 |
| Hemisphere | 1,12 | < 1 | |
| Area × Hemisphere | 1,12 | 3.00 | p = .22 |
| Children | |||
|
| |||
| Effect | df | F-value | p-value |
|
| |||
| Area | 1,11 | 19.96 | p < .05 |
| Hemisphere | 1,11 | 8.39 | p < .05 |
| Area × Hemisphere | 1,11 | 2.42 | p = .30 |