Table 7.
Coordinates for Peak and Sub-Peaks of Activation for the Accuracy-fMRI Correlations
Peak MNI |
||||||
---|---|---|---|---|---|---|
Region | Hemisphere | Voxels | Max Z | X | Y | Z |
Negative Accuracy Correlation Across Groups | ||||||
Frontal pole | Left | 7699 | 5.25 | −36 | 56 | 16 |
Orbital frontal cortex | Left | 1195 | 5.10 | −32 | 26 | −6 |
Insula | Left | — | 4.99 | −32 | 22 | −2 |
Temporal pole | Left | — | 3.94 | −54 | 16 | −10 |
Temporal pole | Right | 1217 | 5.31 | 50 | 16 | −8 |
Insula | Right | — | 4.73 | 34 | 20 | 6 |
Orbital frontal cortex | Right | — | 4.55 | 36 | 28 | −8 |
Inferior frontal gyrus | Right | — | 3.42 | 56 | 28 | 0 |
Postcentral gyrus | Right | 640 | 3.74 | 40 | −36 | 52 |
Supramarginal gyrus | Right | — | 3.30 | 64 | −44 | 36 |
Superior parietal lobule | Right | — | 3.07 | 34 | −50 | 48 |
Cingulate gyrus | — | 2737 | 4.65 | 0 | −44 | 8 |
Supramarginal gyrus | Left | 748 | 5.40 | −34 | −44 | 36 |
Superior parietal lobule | Left | — | 3.66 | −30 | −56 | 54 |
Lateral occipital cortex | Right | 8424 | 4.76 | 44 | −74 | −16 |
Lateral occipital cortex | Left | — | 4.57 | −38 | −90 | −6 |
Occipital pole | Right | — | 4.64 | 8 | −98 | −4 |
Occipital fusiform gyrus | Right | — | 4.44 | 34 | −70 | −20 |
Younger Adults | ||||||
Frontal pole | Left | 2260 | 5.61 | −46 | 54 | −16 |
Precentral gyrus | Left | — | 4.42 | −34 | −4 | 42 |
Orbital frontal cortex | Left | 1447 | 5.43 | −32 | 24 | −6 |
Inferior frontal gyrus | Left | — | 4.54 | −44 | 10 | −2 |
Temporal pole | Left | — | 4.52 | −48 | 12 | −6 |
Inferior frontal gyrus | Right | 1526 | 5.21 | 48 | 16 | −6 |
Insula | Right | — | 5.14 | 32 | 18 | 6 |
Orbital frontal cortex | Right | — | 5.10 | 34 | 28 | −6 |
Paracingulate gyrus | Left | 5449 | 5.36 | −4 | 16 | 44 |
Cingulate gyrus | Right | — | 5.04 | 10 | 20 | 30 |
Superior frontal gyrus | Right | — | 4.49 | 26 | −2 | 42 |
Superior temporal gyrus | Right | 700 | 3.74 | 70 | −12 | 6 |
Supramarginal gyrus | Right | — | 3.60 | 62 | −44 | 36 |
Cingulate gyrus | — | 596 | 3.42 | 0 | −18 | 40 |
Precuneus Cortex | Right | — | 3.41 | 12 | −36 | 46 |
Lateral occipital cortex | Left | 704 | 4.06 | −40 | −78 | −18 |
Occipital fusiform gyrus | Left | — | 3.47 | −30 | −76 | −14 |
Lateral occipital cortex | Right | 4110 | 5.16 | 30 | −80 | 2 |
Middle temporal gyrus | Right | — | 4.13 | 44 | −58 | 6 |
Occipital fusiform gyrus | Right | — | 3.93 | 30 | −72 | −4 |
Occipital pole | — | — | 3.89 | 0 | −94 | 6 |
Older Adults | ||||||
Frontal pole | Right | 4182 | 5.01 | 34 | 56 | 30 |
Frontal pole | Left | — | 4.75 | −22 | 56 | 32 |
Precuneus | Left | 1458 | 3.94 | −6 | −54 | 68 |
Precuneus | Right | — | 3.93 | 2 | −48 | 70 |
Occipital pole | Left | 3055 | 5.63 | −20 | −104 | −8 |
Occipital pole | Right | — | 4.58 | 26 | −98 | 6 |
Positive Accuracy Correlation | ||||||
No significant correlations | ||||||
Interaction between accuracy and age group | ||||||
Stronger negative correlations in Younger Adults | ||||||
Orbital frontal cortex | Left | 295 | 4.03 | −24 | 14 | −14 |
Temporal pole | Left | — | 3.71 | −45 | 16 | −18 |
Insula | Left | — | 3.35 | −38 | 15 | −14 |
Orbital frontal cortex | Right | 163 | 4.10 | 30 | 12 | −22 |
Temporal pole | Right | — | 3.27 | 51 | 18 | −22 |
Intracalcarine cortex/Lingual gyrus | Right | 17 | 2.62 | 10 | −86 | −2 |
Occipital fusiform gyrus | Right | 446 | 3.87 | 32 | −70 | −12 |
Lateral occipital cortex | Right | — | 3.77 | 28 | −82 | 3 |
Stronger negative correlations in Older Adults | ||||||
Frontal pole | Left | 59 | 3.72 | −6 | 56 | −6 |
Frontal pole | Right | — | 2.49 | 5 | 57 | −2 |
Frontal medial cortex | Left | — | 3.26 | −6 | 54 | −8 |
Subcallosal cortex | Right | 370 | 4.2 | 8 | 18 | −8 |
Precuneus | Left | 386 | 3.73 | −14 | −62 | 44 |
Postcentral gyrus | Right | — | 2.70 | 18 | −40 | 68 |
Precuneus | Right | — | 3.23 | 4 | −51 | 66 |
Superior parietal lobule | Right | — | 2.82 | 18 | −53 | 62 |
Superior parietal lobule | Left | — | 3.15 | −10 | −54 | 66 |
Lateral occipital cortex | Left | — | 3.01 | −20 | −61 | 64 |
Note. The voxel-wise Z threshold = 2.3, p < .01. Clusters with a corrected significance of p < .05 were retained. Sub-peaks are included to provide a more thorough characterization of the functional activation.