Model | Left parietal [−61 −35 43] | Right parietal [60 −30 43] | Left frontal [−36 43 1] | Right frontal [44 39 4] |
---|---|---|---|---|
Combined regression | t(103) = 3.87, p < 0.001 | t(103) = 4.49, p < 0.001 | t(103) = 3.37, p < 0.001 | t(103) = 3.55, p < 0.001 |
Combined regression, controls excluded | t(56) = 2.20, p = 0.016 | t(56) = 2.85, p = 0.003 | t(56) = 1.43, p = 0.078 nearby left frontal peak at [−44 47 −5] t(56) = 2.55, p = 0.005 | t(56) = 2.30, p = 0.013 |
Linear mixed model, two groups | t(102) = 2.03, p = 0.021 | t(102) = 2.90, p = 0.002 | t(102) = 1.93, p = 0.028 | t(102) = 1.90, p = 0.030 |
Linear mixed model, five groups | t(99) = 2.03, p = 0.023 | t(99) = 3.11, p = 0.001 | t(99) = 1.70, p = 0.046 | t(99) = 1.71, p = 0.046 |
Across all three confirmatory models and four ROIs, the voxel of peak significance in the combined regression is significant in eleven of twelve cases. The only exception is the left frontal voxel in the ungrouped regression model with controls excluded, which is only trend significant. However, as shown in the maps (Fig. 6, second row), there is an extensive left frontal cluster in this condition, which is slightly more anterolateral than the original analysis, just missing the original peak. The peak of this cluster is also reported.