Updates are available Correction dated 2023-05-16

Article History

Accepted: 15 December 2022

First Online: 16 February 2023

Change Date: 16 May 2023

Change Type: Correction

Change Details: A Correction to this paper has been published:

Change Details: https://doi.org/10.1038/s41582-023-00821-2

Competing interests

: M.J.E. does medical expert reporting in personal injury and clinical negligence cases, including in cases of functional neurological disorder (FND). M.J.E. has shares in Brain & Mind, which provides neuropsychiatric and neurological rehabilitation in the independent medical sector, including in people with functional neurological disorder. M.J.E. has received financial support for lectures from the International Parkinson’s and Movement Disorders Society and the FND Society (FNDS). M.J.E. receives royalties from Oxford University Press for his book <i>The Oxford Specialist Handbook of Parkinson’s Disease and Other Movement Disorder</i>. M.J.E. receives grant funding, including for studies related to FND, from the National Institute for Health and Care Research (NIHR) and the Medical Research Council (MRC). M.J.E. is an associate editor of the <i>European Journal of Neurology</i>. M.J.E. is a member of the international executive committee of the International Parkinson’s and Movement Disorders Society and a board member of the FNDS. M.J.E. is on the medical advisory boards of the charities FND Hope UK and Dystonia UK. J.S. reports royalties from UpToDate for articles on FND and runs a free self-help website for people with FND. J.S. carries out independent personal injury and clinical negligence medicolegal work including in relation to FND where questions of feigning commonly arise. He is secretary of the FND Society and is on the medical advisory boards for FND Hope and FND Action. J.S. has received grant funding for projects on FND from NIHR, European Union, and Scottish Government. J.S. is a career research fellow funded by the Chief Scientist Office in Scotland. M.Y. receives grant funding for studies into functional neurological disorder and functional seizures from the MRC, the NIH and the Association of British Neurologists. He carries out independent medico-legal work for the criminal, civil and family courts, some of which involves functional neurological disorders. He also receives royalties from Elsevier for two editions of the <i>Crash Course Neurology</i> textbook.