Seizure
Absence - People having absence seizures often look like they are just "spaced out."  They do not fall to the ground or have jerking movements, but they do not seem to hear or notice anything around them.  Other people may not notice that the person is having a seizure at all. The person may simply freeze in place and pick up where they left off when the seizure is over. The person having the seizure usually does not remember it afterward. This kind of seizure only lasts up to 10 seconds.