If it occurs again, it might be worth discussing with a neurologist. There is a form of seizure called a "simple partial seizure" in which the
person remains fully conscious while experiencing motor, sensory, or other changes. The effects vary widely from one individual to another. Here's
one type of simple partial seizure:
Sensory seizures:These cause changes in any one of the senses. People with sensory seizures may smell or taste things that aren't there; hear
clicking, ringing, or a person's voice when there is no actual sound; or feel a sensation of "pins and needles" or numbness. Seizures may even be
painful for some patients. They may feel as if they are floating or spinning in space. They may have visual hallucinations, seeing things that aren't
there (a spot of light, a scene with people). They also may experience illusions—distortions of true sensations. For instance, they may believe that
a parked car is moving farther away, or that a person's voice is muffled when it's actually clear.
Source:
www.epilepsy.com... (It's one page -- worth a read.)
Also note: some people just have a seizure out of the blue for no apparent reason, and then never have another one.
All the best to you & your wife!