Table 1.
DogFACS variables (Action Units (AUs), Action Descriptors (ADs) and Ear Action Descriptors (EADs)) used in22.
| Num | DogFACS variable | Description |
|---|---|---|
| AU101 | Inner brow raiser | Protuberance above the eye moves dorsally and obliquely towards the midline |
| AU145 | Blink | Both eyelids move towards and touch each other, covering the eye for less than 0.5 s |
| AU12 | Lip corner puller | Lip corners move caudally |
| AU116 | Lower lip depressor | Lower lip moves ventrally |
| AU25 | Lips part | Any lip separation |
| AU26 | Jaw drop | Lower jaw moves ventrally in a relaxed manner and teeth are separated |
| AD19 | Tongue show | Tongue is protruded at least until the inner lower lip |
| AD137 | Nose lick | Tongue moves out of the mouth towards the nose and wipes it |
| AD126 | Panting | Mouth is open, tongue is protruded, and dog breathes shortly and quickly |
| EAD102 | Ears adductor | Ears move dorsally towards the midline of the head; bases of both ears come closer together |
| EAD103 | Ears flattener | Ears move caudally |