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Published online by Cambridge University Press: 10 July 2025
Background: Functional movement disorder (FMD), a subtype of functional neurological disorder, is a complex neuropsychiatric syndrome characterized by inconsistent and incongruent motor symptoms, such as tremor and gait disorder. Despite its prevalence and associated disability, FMD remains understudied. The multidisciplinary FMD Clinic in Calgary, Alberta offers an opportunity to describe characteristics of FMD, focusing on sex and gender differences, neuropsychiatric risk factors, healthcare utilization and motor phenotypes. Methods: This ongoing registry study evaluates adult FMD patients seen in the Calgary FMD Clinic by a movement disorders neurologist and neuropsychiatrist. Patients undergo detailed movement disorders and neuropsychiatric assessments, including identifying motor phenotypes, psychiatric comorbidities, and relevant psychological traits. Standardized scales evaluate symptom severity and impact. Descriptive statistics and measure of variance will be calculated for variables of interest. Results: The Calgary FMD Registry was approved in March 2024, with 53 participants currently enrolled. Data collection for this study is projected to conclude in March 2025. Conclusions: The Calgary FMD Registry is the first of its kind to systematically characterize FMD based on both movement disorders and neuropsychiatric variables. This study aims to improve our understanding of neuropsychiatric factors related to FMD. Future studies from this registry will examine short- and long-term outcomes.