Table 2.
Regions of activation for the main effects of Decisions.
| Contrast | Region (Brodmann Area) |
MNI coordinates (x, y, z) |
Cluster size (kE) |
Statistic (t) |
|---|---|---|---|---|
| Decisions > Driving baseline kt = 109 | L Precentral Gyrus (BA 4) | −34, −20, 56 | 36,092 | 15.6 |
| L Middle Frontal Gyrus (BA 10) | −38, 52, 18 | 1049 | 7.7 | |
| R Inferior Occipital Gyrus | 32, −92, −8 | 258 | 7.3 | |
| R Middle Frontal Gyrus | 38, 40, 32 | 1187 | 7.2 | |
| L Middle Occipital Gyrus | −40, −72, 6 | 224 | 6.8 | |
| L Inferior Occipital Gyrus (BA 18) | −26, −96, −10 | 172 | 6.0 | |
| R Inferior Temporal Gyrus | 68, −26, −22 | 113 | 5.1 | |
| Driving baseline > Decisions kt = 109 | L Orbital Frontal Gyrus | −44, 28, −6 | 34,477 | 11.6 |
| R Superior Temporal Gyrus | 60, −4, −12 | 13,128 | 9.5 | |
| L Cerebellum | −24, −80, −38 | 303 | 4.9 | |
| Go > Stop decisions kt = 98 | L Postcentral Gyrus (BA 3) | −40, −24, 52 | 2470 | 13.8 |
| L Putamen | −16, 8, −10 | 1030 | 9.4 | |
| L Supplementary Motor Area (BA 6) | −4, −6, 54 | 1401 | 9.0 | |
| R Caudate | 14, 10, −10 | 1052 | 7.8 | |
| L Precentral Gyrus | −56, 4, 36 | 300 | 6.9 | |
| L Midbrain | −6, −28, −10 | 457 | 5.8 | |
| R Postcentral Gyrus | 44, −22, 42 | 210 | 5.2 | |
| R Superior Frontal Gyrus (BA 6) | 30, −10, 62 | 185 | 4.8 | |
| Stop > Go decisions kt = 97 | R Cuneus | 14, −90, 18 | 30, 198 | 9.1 |
| R Middle Frontal Gyrus (BA 6) | 48, 2, 56 | 155 | 6.3 | |
| L Cerebellum | −12, −76, −44 | 271 | 5.4 | |
| L Inferior Frontal Gyrus (BA 46) | −56, 28, 16 | 240 | 5.1 | |
| R Superior Frontal Gyrus | 10, 52, 46 | 700 | 4.8 | |
| R Supplementary Motor Area (BA 6) | 6, 18, 68 | 104 | 4.5 | |
Note: Results reported here exceeded the minimum cluster extent threshold needed for a 0.05 family-wise error (FWE) rate given a voxel-wise threshold of p = 0.001. The cluster extent threshold (kt) for each contrast was calculated using 3dClustSim in AFNI. Number of participants = 79 for all contrasts.