Table 4.
Reward processing during “learned“ vs. “search” trials..
| Brain regions | BA | Left/right | MNI coordinates (mm) | Z-score | Cluster size | ||
|---|---|---|---|---|---|---|---|
| X | Y | Z | |||||
| YOUNG | |||||||
| Superior frontal gyrus | 6 | R | 12 | 12 | 55 | 2.94 | 8 |
| Ventral striatum | L | −4 | 8 | 0 | 4.25 | 57 | |
| Ventral striatum | R | 8 | 16 | −5 | 3.69 | ||
| Cingulate gyrus | 32 | L | −16 | 12 | 41 | 2.81 | 6 |
| Postcentral gyrus | 3 | L | −52 | −16 | 55 | 3.34 | 20 |
| Postcentral gyrus | 40 | R | 24 | −40 | 60 | 3.88 | 318 |
| Superior parietal lobe | 5 | L | −16 | −44 | 60 | 3.57 | |
| Superior temporal gyrus | 22 | L | −64 | −16 | 5 | 2.88 | 7 |
| Postcentral gyrus | 40 | R | 64 | −24 | 23 | 4.44 | 204 |
| Superior temporal gyrus | 42 | R | 68 | −36 | 18 | 4.28 | |
| OLD | |||||||
| Middle occipital gyrus | 18 | L | −32 | −100 | 0 | 2.86 | 7 |
| YOUNG > OLD | |||||||
| Ventral striatum | R | 8 | 12 | −5 | 2.82 | 7 | |
| Postcentral gyrus | 43 | R | 68 | −16 | 18 | 3.45 | 19 |
| Superior temporal gyrus | 22 | R | 68 | −40 | 18 | 2.85 | |
| OLD > YOUNG | |||||||
| Middle occipital gyrus | 18 | L | −32 | −100 | 0 | 3.61 | 72 |
| Parahippocampal gyrus | 37 | L | −36 | −52 | −9 | 2.93 | |
Brain regions showing a greater response to “learned” as compared to “search” trials in young adults, older adults and in-group comparisons. Activated anatomical region, coordinates of the local maxima of significance within the Montreal Neurological Institute (MNI) coordinate system, its corresponding Brodmann area (BA), and the peak Z values are given. The reported regions were active with p < 0.005 (uncorrected)..