Is It Daydreaming or a Seizure? Symptoms and Misdiagnoses

It is easy to assume a child who stares into space is simply lost in thought or has a short attention span. However, in Childhood Absence Epilepsy (CAE), these moments are not a choice or a distraction—they are brief interruptions in the brain’s electrical activity. Because these “spells” are so short and subtle, they are frequently misdiagnosed as ADHD or simple daydreaming ^[1].

What an Absence Seizure Looks Like

A typical absence seizure (formerly called “petit mal”) is often described as a sudden “glitch” in a child’s awareness. Key characteristics include:

• Abrupt Start and Stop: The seizure begins without warning and ends just as suddenly ^[2].
• The “Blank Stare”: The child stops moving and stares straight ahead. They are completely unresponsive during this time ^[2][3].
• Subtle Movements: While the body stays upright, you might see automatisms—repetitive, unconscious movements. Common examples include rapid eye blinking, lip-smacking, chewing motions, or subtle finger movements ^[2].
• Brief Duration: Most seizures last only 5 to 15 seconds ^[4].
• Immediate Recovery: Unlike other types of epilepsy, there is no post-ictal (post-seizure) confusion. The child usually returns to exactly what they were doing the moment the seizure ends, often unaware they even had one ^[2].

The “Daydreaming” Confusion

The biggest challenge for parents and teachers is telling the difference between a child who is “checked out” and a child having a seizure.

The Impact of “Micro-Interruptions”

In CAE, these seizures do not just happen once or twice. A child may experience dozens or even hundreds of episodes every single day ^[6].

Imagine trying to follow a teacher’s lesson if your “brain feed” cut out for 10 seconds every two minutes. This leads to significant neuropsychological comorbidities, specifically deficits in executive function and attention ^[7][8]. Even though the seizures are brief, their frequency can make a child appear “spaced out” or “slow to follow directions,” which is why many are initially evaluated for ADHD rather than epilepsy ^[1][8].

Looking Ahead: Tonic-Clonic Seizures

One common fear for parents is whether these small seizures will turn into “grand mal” or generalized tonic-clonic seizures (GTCS)—the type involving shaking and loss of consciousness.

While this can happen, recent research suggests the risk is lower than once thought, especially if the child responds well to initial treatment with medications like ethosuximide ^[9]. Achieving early “seizure freedom” is the best way to lower the long-term risk of other seizure types ^[9][10]. Monitoring is essential, but most children with a clear CAE diagnosis will only experience the brief absence spells ^[9].