Brain-computer Interface Rehabilitation And Virtual Environments in Functional Neurological Disorder (BRAVE-FND)

Inclusion Criteria: * DSM5 diagnosis of motor FND (limb weakness, gait disorder, tremor or dystonia) from a neurologist and/or neuropsychiatrist. * Moderate or severe symptoms (≥4 on Clinical Global Impression Severity (CGI-S) scale). * Able to tolerate VR and BCI use. * Age 18 - 60 years. * English speaking. Exclusion Criteria: * Current diagnosis of epilepsy, severe depression, bipolar disorder, psychotic disorder, personality disorder, or drug/alcohol dependence/harmful use (defined as meeting DSM-5 criteria) (Mini International Neuropsychiatric Interview \[MINI\] 7.0). Positive diagnoses on the MINI will be subject to confirmation at clinical interview by a psychiatrist. * Current diagnosis of epilepsy, autistic spectrum disorder, dementia, learning disability (defined as meeting DSM-5 criteria) based on clinical interview by a psychiatrist. * A pacemaker, implantable cardioverter-defibrillator or any other implanted electronic or metallic device. * Current pregnancy. * Non-registration with a GP or failure to consent to sharing of the GP summary care record and any psychiatric assessments held. * Those enrolled in another clinical or research study. * Those unable to give informed consent.