Table 1.

behavior score	observed motor behavior
0	normal behavior: walking, exploring, sniffing, grooming
1	freeze behavior: immobile, staring, curled-up posture
2	automatisms: repetitive blinking, chewing, head bobbing, vibrissae twitching, scratching, face washing
3	partial-body clonus, myoclonic jerks, shivering
4	whole-body clonus, “corkscrew” turning and flipping, loss of posture, rearing, falling
5	SE onset, nonintermittent seizure activity lasting at least 30 min
6	wild running, bouncing, tonic seizures
7	death