Table 2.
ERRORS | ||||||
---|---|---|---|---|---|---|
pMFC | Left aI/fO | Right aI/fO | ||||
Intercept | 1.10 ± .28 | <.001 | 1.48 ± .25 | <.001 | 1.42 ± .28 | <.001 |
Group | .98 ± .41 | .018 | 0.50 ± .36 | .175 | .58 ± .39 | .139 |
Age | −.25 ± .13 | .063 | ------------ | --- | −.12 ± .13 | .342 |
Inc RT | −.006 ± .002 | .001 | ------------ | --- | −0.004 ± .002 | .025 |
Inc Acc | 10.06 ± 3.07 | .002 | 1.70 ± 3.91 | .665 | 7.1 ± 2.97 | .019 |
Group × Age | .39 ± .18 | .029 | ------------ | --- | .28 ± .17 | .098 |
Group × Inc RT | .005 ± .002 | .026 | ------------ | --- | .006 ± .002 | .010* |
Group × Inc Acc | ------------ | --- | 8.13 ± 5.41 | .136 | ------------ | --- |
Motion | ------------ | --- | −3.38 ± 1.60 | .037 | ------------ | --- |
Adjusted R-Square | 0.17 | 0.08 | 0.08 | |||
Model ANOVA | F(6,95)=4.4 (p<.001) | F(4,97)=3.2 (p=.016) | F (6,95) = 2.5 (p=.03) | |||
INTERFERENCE | ||||||
pMFC | Left aI/fO | Right aI/fO | ||||
Intercept | .60 ± .07 | <.001 | .45 ± .08 | <.001 | .52 ± .08 | <.001 |
Group | −.02 ± .10 | .847 | −.08 ± .12 | .492 | −.10 ± .12 | .413 |
Age | ------------ | ---- | ------------ | ---- | ------------ | ---- |
Overall RT | −.001 ± .0004 | .055 | −.001 ±.0004 | .053 | −.001 ± .0003 | .001* |
Overall Acc | 1.41 ± 1.76 | .425 | 4.93 ± 2.04 | .017* | 1.77 ± 2.06 | .393 |
Group × Age | ------------ | ---- | ------------ | ---- | ------------ | ---- |
Group × overall RT | .001 ± .0005 | .028 | .001 ± .0006 | .100 | ------------ | ---- |
Group × overall Acc | −5.17 ± 2.51 | .042 | −7.83 ± 2.9 | .008* | −4.90 ± 2.95 | .099 |
Motion | ------------ | --- | ------------ | --- | ------------ | --- |
Adjusted R-Square | 0.03 | 0.05 | 0.08 | |||
Model ANOVA* | F(5,135)= 2.0 (p=.086) | F(5,135)=2.4 (p=.039) | F(4,136)=4.2 (p=.003) |
Note: Motion refers to framewise displacement 28. Dashed lines represent predictor variables eliminated during backwards stepwise regression.
Significance levels were p < .05 for pMFC (primary region of interest, bolded) and p < .013 for secondary ROIs (asterisked).
aI/fO = anterior insula/frontal operculum, Acc = accuracy, Inc = incongruent, HC = healthy controls, pMFC = posterior medial frontal cortex, RT = response time