What is Functional Neurological Disorder (FND)?
A complete guide for patients, families and referring providers.
What is FND
Functional Neurological Disorder (FND) is a condition in which the brain's signaling and functioning is disrupted — not because of structural damage or disease, but because of how the nervous system has learned to respond to the world. FND is real. It is recognized. It is diagnosable. And it is treatable. People with FND experience genuine neurological symptoms that cannot be explained by another neurological condition. These symptoms are not imaginary, not fabricated, and not a choice.
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FND Symptoms
FND can present in many ways:
Functional seizures (PNES)
Functional movement disorders
Tremors, dystonia, weakness
Functional gait disorders
Dissociation and derealization
Functional sensory symptoms
Numbness, tingling, vision changes
Functional cognitive symptoms
Chronic pain and fatigue
Memory and concentration difficulties
FND and Trauma
Research consistently shows a strong connection between FND and trauma — particularly complex trauma, adverse childhood experiences, and prolonged stress.
This is not about blame. It is about opening the door to healing. For many people living with FND and PNES, the nervous system has been carrying an invisible weight for years — absorbing stress, protecting against threat, and doing everything it could to keep you functioning. At some point, that protective response becomes the very thing that disrupts your daily life.
When we address the nervous system's learned responses to stress and trauma, real and lasting change becomes possible. Research shows that trauma-informed psychotherapy — including EMDR, somatic approaches, and nervous system education — produces meaningful reductions in FND symptoms and functional seizure frequency.
At FND Healing Center, we believe your nervous system was never broken — it was protecting you. Our work together is helping it learn that it is finally safe to heal. We serve adults living with FND and PNES in Arizona, Minnesota, Ohio, and Louisiana through secure, HIPAA-compliant telehealth.
📖 Read more: What Actually Helps with FND — and Why Most People Never Find Out
What Causes FND
FND is not caused by structural brain damage. It develops when the nervous system's threat response becomes dysregulated — often following trauma, significant stress, illness, or injury. Think of your nervous system like an electrical outlet with too many things plugged in. At some point the load becomes too much and the breaker trips. That is not a malfunction. That is protection. Our work together is helping your nervous system learn it is finally safe to reset.
📖 Read more:
What Causes Functional Neurological Disorder (FND) — And Why the Answer Changes Everything
How is FND Treated
Research is clear: psychotherapy is the most effective treatment for FND:
EMDR
Works with the body's stored nervous system responses to reduce FND symptoms
Somatic therapy
Helps patients understand and work with symptoms
Nervous System Education
Reprocesses traumatic memories underlying FND and functional seizures
Physiotherapy
Especially for movement presentations
Multidisciplinary care
Coordinated between neurologist, therapist and other providers
What is PNES (Psychogenic Non-Epileptic Seizures)?
Psychogenic Non-Epileptic Seizures (PNES) — also called functional seizures — are seizure-like episodes not caused by the abnormal electrical activity that defines epilepsy. PNES does not respond to anti-epileptic medication and is best treated through trauma-informed psychotherapy.
📖 Read more: You Are Not a Pseudo Anything — What Your PNES Diagnosis Actually Means
