PNES vs. Epilepsy — What's the Difference and Why It Matters for Treatment

A particularly jarring occurrence a person can have is viewing their body undergo seizures without being able to explain why and then being handed a diagnosis that does not quite fit, a prescription that yields no results, and a healthcare team that appears just as baffled. Psychogenic Non-Epileptic Seizures, or PNES, are among the most misunderstood and misdiagnosed conditions in neurology; and the difference between PNES and epilepsy is not just clinical It influences the entirety of what treatment will actually help.

What Makes PNES Different from Epileptic Seizures?

Both PNES and epileptic seizures can look nearly identical from the outside. Convulsing, temporary unresponsiveness, losing balance, later disorientation — the surface presentation can be almost indistinguishable, even to experienced clinicians observing at the bedside. What is happening inside the brain, however, is entirely different.

Epileptic seizures are caused by abnormal electrical activity in the brain; sudden, synchronized bursts of electrical discharge that disrupt normal brain function. PNES does not involve that abnormal electrical activity at all. The brain activity traces during a functional seizure remain essentially normal, which is why a standard EEG often comes back unremarkable for people with PNES; and why that result is so frequently regarded as an indication of good health rather than a diagnostic clue pointing somewhere else.

The current gold standard to differentiate between the two is ongoing video EEG observation, which gathers data on both brain electrical activity and actual event together. During a seizure event while being monitored and the EEG shows no abnormal discharge, that is not a normal result. It informs us the incident is functional as opposed to being epileptic; and that revamps the complete treatment strategy.

There are some clinical patterns that tend to appear more often in PNES than in epileptic seizures: longer duration, movements that fluctuate or occur out of phase with each other, side-to-side head movement, eyes remaining closed during the event, crying during the episode, and rapid recovery afterward without the prolonged confusion that often follows an epileptic seizure. None of these features are definitive on their own, but together they paint a picture that an experienced clinician can recognize.

Why Getting the Diagnosis Right Matters Enormously

Most people with PNES spend years being treated for epilepsy they do not have. Research suggests that somewhere between ten and forty percent of patients referred to epilepsy centers for seizures that are not responding to medication are eventually found to have PNES rather than epilepsy. At least a quarter of people previously diagnosed with epilepsy who are not responding to anti-seizure medications have been misdiagnosed.

That is not a small margin of error. That is years of a person's life spent on medications that cannot work for their condition, sometimes at increasing doses as clinicians try to manage what looks like treatment-resistant epilepsy. Anti-seizure medications do not treat PNES; they cannot, because PNES does not involve the electrical mechanism those medications are designed to address. For some people the medications cause significant side effects while doing nothing for the seizures themselves. Meanwhile the underlying cause; the nervous system's functional response to stress, trauma, and accumulated experience, goes entirely unaddressed.

This is why the distinction matters so much. It is not an academic question. For someone managing functional seizures, it indicates the contrast between a care strategy that can effectively aid and one that does not provide help.

I find it relevant to point out a recurring observation from clients: receiving a diagnosis of PNES after years of epilepsy treatment can feel destabilizing rather than clarifying, for some time. There can be a sense of "so it was never real?" and that interpretation is completely understandable and completely wrong. PNES is real. The seizures are real. The nervous system is generating them through a different mechanism than epilepsy uses, but the person's suffering and limitation are not diminished by the diagnosis in any way.

What Actually Helps: Treatment for PNES and Functional Seizures

Because PNES is a functional neurological condition rather than an electrical one, treatment looks fundamentally different from epilepsy care. There are no medications proven to treat PNES directly; There are no medications proven to treat PNES directly; psychotherapy serves as the intervention, notably approaches tailored to the nervous system's stress reactions, trauma history, and patterns of dysregulation., trauma history, and patterns of dysregulation.

At FND Healing Center, we work with people with PNES and functional seizures through a framework we call Neuroprotective Reframe Therapy (NRT). The core belief is simple and it changes everything: the nervous system is not broken, it is protecting. Functional seizures are the body's response to accumulated experience of threat, dysregulation, or unprocessed trauma. They are not a character flaw, a sign of weakness, or evidence that a person cannot handle their life. They are the nervous system doing what nervous systems do; trying to keep a person safe using the tools available to it.

Our H.E.A.L. Protocol — Hear, Educate, Activate, Learn — walks clients through the process of understanding what their nervous system has been doing, building genuine felt safety, and developing the regulatory capacity to reduce and over time resolve seizure activity. We use EMDR therapy, somatic approaches, polyvagal-informed nervous system education, and Internal Family Systems-informed work; modalities chosen because they reach the parts of the nervous system where functional seizures originate.

For people who are newly diagnosed and want to begin with psychoeducation before committing to individual therapy, the Nervous System Decoded Series offers a gentle, supported starting point. This three-part live group; Whispers, Screams, and Wisdom of Your Nervous System; is available for $40 per session or $90 for the full trilogy.

FND Healing Center serves adults in Arizona, Minnesota, Ohio, and Louisiana via telehealth. We accept Aetna and Cigna in Arizona through Headway; self-pay rates are available in all states. Learn more about our approach at fndcenter.com/services.

You Deserve a Diagnosis That Opens a Door

A PNES diagnosis, delivered well, is not a dismissal; it is a redirect toward care that can actually work. The nervous system that has been generating these seizures is the same nervous system that is capable of learning something new. That process is real, it is possible, and it does not require a person to have had an easy life or a simple history to get there.

We offer a free 20-minute consultation at fndcenter.com/contact for anyone who wants to talk through a PNES or functional seizure diagnosis and explore what treatment might look like. You do not have to keep searching for someone who understands this.