Correspondence between facial changes identified in the original MGS (Langford et al., 2010) and the method developed in this paper
| MGS items | Corresponding facial parameters | Change direction |
|---|---|---|
| Orbital tightening | Eye opening | Smaller eye opening |
| Nose bulge | Snout position Mouth position Face inclination | Pointier snout? Mouth backward More convex face |
| Cheek bulge | Snout position Mouth position Face inclination | Rounder snout? Mouth backward More convex face |
| Ear position | Ear opening Ear position Ear angle | Ear to the side Ear moved backward Tilted ear |
| Whisker change | Snout position Mouth position Face inclination | Rounder snout? Mouth backward More convex face |