Table 5.
Regression analyses for two-way interactive effects of anxiety and depression on RT interference ROIs.
| Region | R2 | ΔR2 | Test | p | |
|---|---|---|---|---|---|
| L middle frontal gyrus (posterior DLPFC) | PSWQ × MASQAA | 0.08 | t(78) = −2.65 | 0.01 | |
| Full model | 0.156 | F(6, 78) = 2.40 | 0.04 | ||
| R middle temporal gyrus | PSWQ × MASQAA | 0.07 | t(78) = −2.57 | 0.01 | |
| Full model | 0.164 | F(6, 78) = 2.55 | 0.03 | ||
| R frontal pole | PSWQ × MASQAA | 0.13 | t(78) = −3.48 | <0.01 | |
| Full model | 0.185 | F(6, 78) = 3.00 | 0.01 | ||
| R frontal pole | PSWQ × MASQAD8 | 0.04 | t(78) = −2.96 | 0.05 | |
| Full Model | 0.185 | F(6, 78) = 3.00 | 0.01 |
N, 85. PSWQ, Penn State Worry Questionnaire; MASQAA, Mood and Anxiety Symptom Questionnaire Anxious Arousal scale; MASQAD8, Mood and Anxiety Symptom Questionnaire Anhedonic Depression 8-item subscale; R, right; L, left; DLPFC, dorsolateral prefrontal cortex. ΔR2is the incremental variance associated with the interaction term, with its individual constituents already in the model.