Why are they strapping him down for an EEG?! He should be asleep - sleep deprived and/or sedated so he doesn't wake up. I would seriously ask about that. He may be strapped down for a CT scan..but even then, for MRI and CT they can still sedate him. These tests aren't fun, but they certainly don't have to be traumatic.
What you are describing actually doesn't sound like absence (petit mal) seizures, but partial/partial complex or focal seizures. These seizures are focused to one specific area of the brain usually (such as the temporal or parietal lobe) and can cause exactly what you are describing. Seizures like grand mal or absense are called general seizures because the electrical impulse goes through the whole brain (vs. one little area).
Anyway, I'm glad to hear he's doing better!