Table 1.
Cluster characteristics.
| Cluster no. | Z max | X (mm) | Y (mm) | Z (mm) | Harvard-Oxford Cortical Atlas | Voxels | |
|---|---|---|---|---|---|---|---|
| A. WHOLE BRAIN ANALYSES | |||||||
| aStroop ctrl | 2 | 4.91 | −56 | −70 | 22 | 52% Lateral occipital cortex, superior division | 15714 |
| 1 | 4.47 | −2 | −60 | 10 | 44% Precuneus cortex | 4278 | |
| aStroop SSRI | 4 | 4.38 | −26 | −72 | −16 | 70% Occipital fusiform gyrus | 5293 |
| 3 | 4.12 | −54 | −16 | 56 | 37% Postcentral gyrus | 4387 | |
| 2 | 4.3 | −42 | 32 | −2 | 23% Frontal orbital cortex | 2667 | |
| 1 | 4.28 | 0 | 6 | 46 | 32% Juxtapositional lobule cortex | 1137 | |
| cStroop ctrl | 3 | 4.45 | 36 | 14 | 38 | 36% Middle frontal gyrus | 6140 |
| 2 | 4.4 | −32 | 18 | −2 | 31% Insular cortex | 1973 | |
| 1 | 4.24 | 42 | −46 | 36 | 18% Angular gyrus | 1943 | |
| cStroop SSRI | 5 | 4.43 | −54 | 16 | 28 | 42% Inferior frontal gyrus, pars opercularis | 10330 |
| 4 | 4.43 | 62 | −54 | −4 | 79% Middle temporal gyrus, temporooccipital part | 7950 | |
| 3 | 4.47 | 44 | 20 | −12 | 42% Frontal orbital cortex | 6533 | |
| 2 | 4.33 | −58 | −46 | −8 | 43% Middle temporal gyrus, temporooccipital part | 3781 | |
| 1 | 3.99 | −14 | −74 | −46 | No label found! | 1120 | |
| B. ROI – DLPFC | |||||||
| cStroop > aStroop ctrl | 1 | 6.2 | 46 | 22 | 32 | 40% Middle frontal gyrus | 944 |
| cStroop > aStroop SSRI | 4 | 4.67 | 44 | 14 | 20 | 20% Inferior frontal gyrus, pars opercularis | 65 |
| 3 | 4.17 | −40 | 34 | 20 | 29% Middle frontal gyrus | 10 | |
| 2 | 4.09 | 34 | 10 | 32 | 26% Middle frontal gyrus | 4 | |
| 1 | 3.94 | 38 | 20 | 26 | 27% Middle frontal gyrus | 2 | |
| C. ROI – ACC | |||||||
| cStroop > aStroop ctrl | 1 | 5.01 | 8 | 30 | 38 | 61% Paracingulate gyrus | 66 |
| cStroop > aStroop SSRI | 1 | 3.8 | −6 | 14 | 46 | 57% Paracingulate gyrus | 4 |
| aStroop > cStroop ctrl | 1 | 3.87 | −6 | 52 | 2 | 75% Paracingulate gyrus | 3 |
| aStroop > cStroop SSRI | – | – | – | – | – | – | – |
| (aStroop > cStroop ctrl) > (aStroop > cStroop SSRI) | 2 | 2.95 | 6 | 44 | 12 | 53% Cingulate gyrus, anterior division | 1 |
| 1 | 2.92 | 8 | 44 | 8 | 53% Cingulate gyrus, anterior division | 1 | |
The table describes the localizations of the peak voxel in the clusters shown in Figure 2 and the region analyses of dorsolateral prefrontal cortex and anterior cingulate cortex. Cluster forming threshold Z ≥ 2.3, corrected p = 0.05. The coordinates are in MNI standard. Since the Harvard-Oxford Cortical Atlas is a probabilistic atlas, the anatomical localizations are reported in percentages.
aStroop, affective counting Stroop (incongruent > neutral words); cStroop, cognitive counting Stroop (incongruent > neutral words); ctrl, control situation; SSRI, after intake of escitalopram; ROI, region of interest analysis; DLPFC, dorsolateral prefrontal cortex; ACC, anterior cingulate cortex.