[heckelson]

Sudden movements? So like a cat jumping up a cupboard? :/

Perhaps a continued back-and-forth jerking can be detected, but it might be quite hard to calibrate.

Another thing I can think of is an EEG implant, but idk if that exists or is even feasible, there's probably not a whole lot of research and unsupervised seizure detection is quite hard even in humans.