When a Seizure-Like Episode Has a Different Cause
A psychogenic seizure—often called a functional seizure—can involve shaking, loss of awareness, or other symptoms that resemble an epileptic seizure. In epilepsy, seizures arise from abnormal bursts of electrical activity in the brain. Functional seizures are not caused by that kind of epileptic burst. Instead, the brain’s systems for attention, emotion, movement, and awareness can stop coordinating normally for a time, producing symptoms the person cannot simply choose to control.
“Psychogenic” does not mean imaginary, deliberate, or necessarily caused by a conscious emotional reaction. Stress or trauma may be relevant for some people, but there is no single cause, and an episode can occur without an obvious trigger. The visible movements are genuine; what differs is the process generating them.
Why Appearance Alone Can Mislead
An observer may see dramatic movements and reasonably think “epileptic seizure,” but appearance alone cannot reliably establish the cause. Some people also have both epilepsy and functional seizures, so one diagnosis does not automatically rule out the other.
Clinicians look at the episode’s pattern and the person’s history. When needed, they use video EEG, which records behavior and brain-wave activity together. That lets specialists check whether an event has the electrical pattern expected in epilepsy. A normal-looking test between episodes, by itself, may not settle the question.
The Diagnosis Changes the Next Step
Once functional seizures are identified, care can focus on understanding the episodes and addressing factors that may be contributing to them. Psychological therapies can help some people, though the right approach depends on the individual. Anti-seizure medicines do not treat functional seizures themselves, though they may still be needed if someone also has epilepsy.
Recognizing the distinction matters in the moment as well as in long-term care: a convincing seizure-like episode deserves attention, but its appearance does not tell the whole story of what the brain is doing.
