Table 7.
Optimal GLMM model for human and dog viewer's PVT as a response variable and the predictor variables viewer's species, body region (AOI—head or body), expression and species viewed
| Predictor factors | Estimate | SE | Z | p |
|---|---|---|---|---|
| Response factor: PVT | ||||
| Intercept | − 2.0391 | 0.083160 | − 24.52 | 0.0001 |
| Viewer's species (human) | 0.78993 | 0.057353 | 13.77 | 0.0001 |
| AOI (head) | 2.15006 | 0.055479 | 38.75 | 0.0001 |
| Viewed species (human) | 0.217760 | 0.053306 | 4.09 | 0.0001 |
| Expression (positive anticipation) | − 0.002287 | 0.082488 | − 0.03 | 0.9778 |
| Expression (happiness) | − 0.606617 | 0.085891 | − 7.06 | 0.0001 |
| Expression (frustration) | − 0.263972 | 0.083562 | − 3.16 | 0.0016 |
| Expression (fear) | − 0.179316 | 0.082630 | − 2.17 | 0.0300 |