Table 2.
Main effects of stimulus valence and interaction effect.
| Region | Side | BA | x | y | z | Size | F(1,14) | t(14) |
|---|---|---|---|---|---|---|---|---|
| Pleasant > Unpleasant | ||||||||
| Posterior cingulate cortex | R | 30 | 9 | −52 | 12 | 1151 | 38.8 | 5.11 |
| Posterior cingulate cortex | L | 30 | −9 | −54 | 10 | 404 | 18.5 | 4.20 |
| Declive | L | −6 | −85 | −20 | 170 | 22.7 | 4.34 | |
| Unpleasant > Pleasant | ||||||||
| Middle frontal gyrus | L | 6 | −35 | 3 | 62 | 546 | 38.4 | −6.35 |
| Amygdala | L | −19 | −7 | −10 | 164 | 10.0 | −3.57 | |
| Inferior parietal lobule | L | 40 | −56 | −39 | 53 | 104 | 16.4 | −4.38 |
| Inferior occipital gyrus | L | 19 | −40 | −74 | −8 | 622 | 36.9 | −5.76 |
| Interaction effect | ||||||||
| Middle frontal gyrus | R | 9 | 36 | 20 | 36 | 421 | 27.9 | 5.12 |
Only clusters > 100 mm3 shown. Bold text: cluster meets criteria for false positive rate α = 0.05 (cluster size > 662). Italic text: cluster identified at reduced threshold (p < 0.05) in a priori region (amygdala). MCC: midcingulate cortex. L: left, R: right. BA: Brodmann Area. X, Y & Z: Talairach co-ordinates (mm). Size: number of 1 mm3 voxels. F: result of whole-brain ANOVA (degrees of freedom); score is taken from the peak voxel of the cluster. t (degrees of freedom): post-hoc contrast of main effect of valence [(EP + FP) − (EU + FU)] or interaction effect [(EP − EU) − (FP − FU)]; score is taken from mean signal of all cluster voxels. EU: emotion rating on unpleasant pictures, EP: emotion rating on pleasant pictures, FU: frequency rating on unpleasant pictures, FP: frequency rating on pleasant pictures.