Functional Neurological Disorder Therapy

Core idea

Functional Neurological Disorder is a genuine neurological condition where the brain's hardware is intact but the software — the way attention, prediction, and motor commands are routed — has become dysregulated. It is diagnosed by positive clinical signs (Hoover's sign, tremor entrainment, etc.), not by exclusion. Best outcomes come from multidisciplinary care: neurology delivers the diagnosis, physiotherapy retrains movement, and psychological therapy addresses maintaining factors, comorbid trauma, and symptom-related avoidance.

Key concepts

Positive diagnosis

FND is identified by specific clinical signs — not a diagnosis of exclusion or psychiatric label by default.

Attention and prediction

Symptoms worsen with self-focused attention; the predictive brain expects malfunction and produces it.

Boom-bust cycle

Overdoing on good days → crash → fear of activity → deconditioning. Pacing breaks the loop.

Comorbidity, not cause

Trauma, depression, and anxiety commonly co-occur but are not required — FND can happen without them.

Multidisciplinary care

Neurology + physiotherapy + psychological therapy is the standard of care, not psychology alone.

What a session looks like

1. 1
   Diagnostic alignment

   Reinforce the neurologist's positive diagnosis; use the metaphor of software, not hardware.
2. 2
   Symptom-trigger mapping

   Track what worsens and improves symptoms — attention, fatigue, emotional state, context.
3. 3
   Distraction and automaticity training

   Symptoms often improve when attention shifts off the affected system; coach attention strategies.
4. 4
   Pacing and graded activity

   Build a baseline of activity the client can sustain on bad days; expand from there.
5. 5
   Address maintaining factors

   Treat comorbid trauma, anxiety, depression, and avoidance with established modalities.

Signature techniques

Evidence base

Specialist FND multidisciplinary programs show 50–70% improvement on functional outcomes (Nielsen et al., 2017; Petrochilos et al., 2020). Physio-based RCTs (Nielsen et al., 2020, motor FND) show significant gains. PNES-specific CBT (LaFrance 2014) reduces seizures ~50%. No single intervention works alone — bundled care is the active ingredient.

Common pitfalls

• ▸Treating FND as a psychiatric diagnosis by default — it is neurological with psychological maintaining factors.
• ▸Working alone — without a neurologist confirming diagnosis and a physio addressing motor symptoms, gains are limited.
• ▸Pushing trauma processing without stabilization in a deconditioned, symptom-flooded client.
• ▸Using outdated language ('conversion disorder', 'hysteria', 'medically unexplained') that undermines the alliance.

Where to go next