Translational Psychiatry
April 24, 2026
Matt Butler, Ellen Moore, James Rucker et al.
1 citation
Hallucinogen persisting perception disorder (HPPD) is characterised by episodes of altered perception linked to past psychoactive drug use, accompanied by distress and functional impairment. To date, clinical characterisation has been limited in scale. Using TriNetX, a global federated health research network of electronic health records, we conducted a retrospective cohort study comparing...
The Journal of neuropsychiatry and clinical neurosciences
2026
Sichen Yin, Kulveer Ghatora, Tiago Teodoro et al.
In this exploratory study, the authors used subjective participant data to investigate sleep disturbance in functional neurological disorder (FND) and its impact on FND symptoms. An online questionnaire was designed in collaboration with FND charities and administered to 373 adult participants with a self-reported FND diagnosis. Most participants (86%) were women, and most (73%) perceived their...
Wellcome Open Research
April 22, 2025
Matthew Butler, Catherine Bird, Carolina Maggio et al.
3 citations
Background Functional neurological disorder (FND) is a common cause of neurological symptoms including seizures and movement disorders. It can be debilitating, is associated with high health and social care costs, and can have a poor prognosis. Functional magnetic resonance imaging (fMRI) has suggested FND is a multi-network disorder. Converging evidence suggests that other mechanisms including...
Wellcome Open Research
2024
Matt Butler, Catherine Bird, Carolina Maggio et al.
4 citations
Functional neurological disorder (FND) is a common cause of neurological symptoms including seizures and movement disorders. It can be debilitating, is associated with high health and social care costs, and can have a poor prognosis. Functional magnetic resonance imaging (fMRI) has suggested FND is a multi-network disorder. Converging evidence suggests that other mechanisms including...
Journal of Neuropsychiatry
May 17, 2022
Matthew Butler, Mathieu Seynaeve, Abigail Bradley‐Westguard et al.
6 citations
Objective: Functional neurological disorder (FND) causes a high burden of disability and distress. Although it is a common disorder, there is a pressing need for improved access to evidence-based treatments. With difficulties in finding effective treatment, some people with FND may seek alternative means of symptom relief, such as legal and illicit psychoactive substances, although the...