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AAN 2024 | Investigating voluntariness in functional neurological disorder

Mark Hallett, MD, from the National Institutes of Health, Bethesda, MD, discusses the underlying mechanisms involved in involuntary movement associated with functional neurological disorder (FND), in particular functional movement disorder (FMD). He discusses the possibility of a paradox with respect to the involvement of voluntary movement mechanisms in producing movements experienced as involuntary in FMD. The requirement to further understand the nature of involuntary movements and patients’ perception of voluntariness is highlighted. The brain networks responsible for voluntariness have been identified in the brain, and so their dysfunction in patients can be used to investigate the incorporation of voluntary movement pathways into involuntary movements. This interview took place at the American Academy of Neurology (AAN) Annual Meeting 2024 in Denver, CO.

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