Deep Dive
Yes. The electroclinical seizure can stop before a person has returned to their usual level of consciousness, orientation, memory or behaviour.
The seizure and the recovery period are different phases
The postictal state begins when the seizure subsides and continues until the person returns towards baseline. Depending on seizure type and the individual, this can involve confusion, reduced responsiveness, amnesia, sleepiness, headache, language problems, agitation or other neurological symptoms.
Why the boundary is sometimes hard to see
For a bilateral tonic-clonic seizure, the end of rhythmic convulsive activity may be obvious. For other seizures, separating late ictal activity from the postictal period can be much harder. Behaviour alone may not show precisely when one phase ended and the next began.
Why this matters in real life
Someone may look as though the seizure is “over” but still be unable to make safe decisions, recognise where they are, remember instructions or communicate normally. First aid therefore does not finish the moment the visible movement stops.
When prolonged altered consciousness needs assessment
Recovery varies, but unusually prolonged unresponsiveness or a major change from the person’s typical pattern can require urgent assessment because ongoing non-convulsive seizure activity and other medical causes may need to be considered.
Sources
Postictal Seizure State
Signs and symptoms of the postictal period — systematic review and meta-analysis
Postictal Recovery