Table 3 Racine score behavioral responses

1

No behavioral change

Subject appears normal

2

Facial clonus

Facial and oral activity that may include ipsilateral eye closure and blinking

3

Head nodding

Head nodding, head bobbing, tongue chewing, chewing like a cow, drooling, wet dog shakes, tremor, body jerks/twitches

4

Unilateral forelimb clonus

One forelimb stretches out uncontrollably

5

Rearing and bilateral forelimb clonus

Both forelimbs stretch out uncontrollably, extended body posture and straight erect (Straub) tail can be seen, rearing occurs, retropulsion

6

Rearing and falling

Rearing and falling, may happen in quick succession (continuous), loss of postural control

7

Full seizure

Could be clonic, or clonic-tonic-clonic seizures involving all 4 limbs