Table 2.
Mixed-effects model output. Mean ERP amplitude at 300–500 ms for the filler items, as a function of semantic constraint and electrode cluster
| Predictor | β | SE | p |
|---|---|---|---|
| (Intercept) | 0.07 | 0.29 | 0.805 |
| Semantic Constraint (Low Constraint) | −2.26 | 0.40 | <0.001*** |
| Cluster (left frontal) | −0.86 | 0.12 | <0.001*** |
| Cluster (left posterior) | 0.48 | 0.13 | <0.001*** |
| Cluster (left temporal) | −0.14 | 0.13 | 0.298 |
| Cluster (midfrontal) | −0.59 | 0.13 | <0.001*** |
| Cluster (midposterior) | 0.47 | 0.13 | <0.001*** |
| Cluster (right frontal) | −0.20 | 0.12 | 0.114 |
| Cluster (right posterior) | 0.56 | 0.13 | <0.001*** |
| Cluster (right temporal) | 0.14 | 0.13 | 0.302 |
| Low Constraint × left frontal | 1.25 | 0.18 | <0.001*** |
| Low Constraint × left posterior | 0.92 | 0.18 | <0.001*** |
| Low Constraint × left temporal | 1.00 | 0.19 | <0.001*** |
| Low Constraint × midfrontal | 0.99 | 0.19 | <0.001*** |
| Low Constraint × midposterior | 0.43 | 0.19 | 0.024* |
| Low Constraint × right frontal | 1.05 | 0.18 | <0.001*** |
| Low Constraint × right posterior | 0.78 | 0.18 | <0.001*** |
| Low Constraint × right temporal | 1.05 | 0.19 | <0.001*** |
Note. Significance codes: ***p < 0.001; **p < 0.01; *p < 0.05; p < 0.10. Fixed effects were treatment-coded, using the High Constraint condition and the Central cluster as reference levels. SE, standard error.