When someone experiences a seizure, the immediate assumption is often epilepsy. But not all seizures are the same. Understanding the difference between functional seizures and epilepsy is crucial for getting the right diagnosis and treatment.
Many people suffer for years without answers because their symptoms are misunderstood. The problem is not lack of medical attention. It is lack of clarity about what is really happening in the brain and body.
What Are Functional Seizures?
Functional seizures, also called psychogenic non-epileptic seizures (PNES) or dissociative seizures, are episodes that look like epileptic seizures but do not involve abnormal electrical activity in the brain.
These seizures are real. The person is not faking. The body is responding to a genuine neurological dysfunction, but the cause is different from epilepsy.
If you still have doubts about the reality of this condition, read the truth about functional neurological disorder.
Key Characteristics of Functional Seizures
- No abnormal electrical brain activity during episodes
- Often linked to stress, trauma, or emotional triggers
- Can include shaking, stiffening, or loss of awareness
- Typically last longer than epileptic seizures
- Eyes are often closed during the episode
- More common in young adults and women
The brain is functioning, but the way it processes stress and emotion has become disrupted. This is why functional seizures are classified under functional neurological disorder (FND).
What Is Epilepsy?
Epilepsy is a neurological condition characterized by recurrent, unprovoked seizures caused by abnormal electrical discharges in the brain. To better understand how the brain processes information during seizures, see what functional seizures are and how they connect to the body.
These seizures are organic. They result from measurable changes in brain activity and can often be detected through diagnostic tests.
Key Characteristics of Epilepsy
- Abnormal electrical brain activity confirmed on EEG
- May have genetic, structural, or metabolic causes
- Seizures can be triggered by flashing lights, sleep deprivation, or missed medication
- Typically shorter in duration than functional seizures
- Eyes are often open during the episode
- Can develop at any age
Epilepsy is a well-understood medical condition with established treatment protocols. The challenge is that its symptoms sometimes overlap with functional seizures, leading to misdiagnosis.
How Are Functional Seizures and Epilepsy Different?
The differences between these two conditions go deeper than their symptoms. Understanding these distinctions helps patients, families, and healthcare providers make better decisions.
Brain Activity
In epilepsy, an electroencephalogram (EEG) shows abnormal electrical patterns during a seizure. In functional seizures, the EEG remains normal even during an episode.
This is the most definitive diagnostic difference. However, catching a seizure during an EEG recording can be difficult, which is why misdiagnosis happens.
Triggers and Causes
Epileptic seizures often have physical triggers: missed medication, sleep deprivation, alcohol, or photosensitivity. Functional seizures are more commonly triggered by emotional stress, anxiety, trauma reminders, or overwhelming situations.
The cause of functional seizures is not psychological weakness. It is a neurological response to chronic stress or past trauma. The brain has learned to respond to certain stimuli with a seizure-like reaction.
Response to Treatment
Epilepsy typically responds to anti-seizure medications. These drugs target abnormal electrical activity in the brain.
Functional seizures do not respond to anti-epileptic drugs. Treatment focuses on addressing the underlying triggers through therapy, stress management, and sometimes hypnotherapy.
Patient Experience
People with epilepsy often injure themselves during seizures because their bodies are rigid and they fall without awareness. People with functional seizures are less likely to have serious physical injuries because their bodies are not in the same state of extreme tension.
However, the emotional toll of functional seizures can be just as severe. Many patients feel dismissed by medical professionals who do not understand the condition.
Why Does Misdiagnosis Happen?
Misdiagnosis between functional seizures and epilepsy is common. Studies suggest that up to 20% of people diagnosed with epilepsy may actually have functional seizures.
Reasons for Misdiagnosis
- Both conditions look identical to observers
- EEG may not capture a seizure episode
- Doctors may not consider FND as a possibility
- Patients are reluctant to discuss stress or trauma
- Emergency settings prioritize immediate treatment over detailed diagnosis
Being prescribed anti-epileptic drugs when you have functional seizures does not help and can cause unnecessary side effects. This is why accurate diagnosis matters.
Can Someone Have Both Conditions?
Yes. It is possible to have both epilepsy and functional seizures. This is called combined epilepsy and PNES.
In these cases, some seizures are caused by abnormal brain activity, while others are functional. This makes diagnosis even more complex and requires careful monitoring by a neurologist.
Diagnosis: How Doctors Tell the Difference
Accurate diagnosis requires a combination of medical history, observation, and testing.
Diagnostic Tools
- Video EEG monitoring: Recording brain activity during a seizure is the gold standard
- Serum prolactin levels: May rise after epileptic seizures but not functional ones
- Detailed medical history: Including psychological and trauma history
- Observation of seizure characteristics: Eye closure, movement patterns, and duration
A compassionate, thorough evaluation is essential. Patients with functional seizures often feel invalidated when doctors imply their symptoms are “all in their head.”
Treatment Options for Functional Seizures
Since functional seizures are not caused by abnormal brain electricity, they require a different approach. Many people with FND also experience anxiety episodes, which makes stress management even more important.
Effective Treatments
- Cognitive behavioral therapy (CBT): Helps identify and manage triggers
- Trauma-informed therapy: Addresses underlying PTSD or adverse experiences
- Hypnotherapy: Can help retrain the brain’s stress response patterns
- Stress reduction techniques: Mindfulness, breathing exercises, and lifestyle changes
- Physical therapy: For any functional movement symptoms that accompany seizures
Treatment is not about “curing” the seizures with a pill. It is about understanding the brain’s patterns and giving it healthier ways to respond to stress.
Treatment Options for Epilepsy
Epilepsy treatment focuses on controlling or eliminating seizures through medical and sometimes surgical interventions.
Standard Approaches
- Anti-seizure medications: First-line treatment for most patients
- Ketogenic diet: Effective for some forms of epilepsy, especially in children
- Surgery: For patients with seizures originating from a specific, accessible brain region
- Vagus nerve stimulation: A device that reduces seizure frequency
The goal is to achieve seizure freedom while minimizing side effects. Many people with epilepsy live full, active lives with proper management.
How to Support Someone Having a Seizure
Whether the seizure is epileptic or functional, the immediate response should prioritize safety.
First Aid Steps
- Stay calm and stay with the person
- Clear the area of dangerous objects
- Do not restrain their movements
- Do not put anything in their mouth
- Time the seizure
- After it ends, help them rest in a safe position
If the seizure lasts more than five minutes, or if the person is injured, seek emergency medical help.
Frequently Asked Questions
Can functional seizures turn into epilepsy?
No. Functional seizures and epilepsy have different underlying mechanisms. Having functional seizures does not cause epilepsy. However, a person can have both conditions independently.
Are functional seizures dangerous?
Functional seizures are generally less physically dangerous than epileptic seizures. However, they can cause injuries from falls, and the emotional impact including anxiety, depression, and social isolation can be severe.
Why do doctors sometimes say functional seizures are psychological?
The term “psychological” is often misunderstood. Functional seizures are not imagined or voluntary. They are a real neurological response to stress or trauma. The brain is functioning, but its stress response has become dysregulated.
Can hypnotherapy help with functional seizures?
Yes. Hypnotherapy can be an effective complementary treatment for functional seizures by helping the brain develop calmer responses to triggers. It works alongside medical and psychological care.
Conclusion
Understanding the difference between functional seizures and epilepsy is the first step toward proper treatment. These conditions may look the same, but they require completely different approaches.
If you or someone you know is struggling with seizures that do not respond to standard epilepsy treatment, consider asking for a referral to a specialist in functional neurological disorders. The right diagnosis changes everything.
If you want a simple first step, download the free Anxiety Zero ebook. And if you feel you need more direct support, get in touch with Fabio Morus.
