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Functional movement disorders: positive diagnostic criteria

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Functional movement disorders (FMDs) are a complex medical problem requiring a set of different diagnostic and treatment approaches: neurological, psychiatric, psychotherapeutic, and neurophysiological. With the advent of positive criteria for the diagnosis of FMDs, the latter are no longer just a diagnosis of exclusion, which is difficult for clinical interpretation. The review considers positive clinical and instrumental diagnostic criteria and presents the neurophysiological characteristics of functional tremor and functional myoclonus, which allow one to suspect this diagnosis. Their timely recognition is extremely important, as this permits patients to reduce the cost of unnecessary examinations and ineffective drugs and increases the chances for successful treatment, since the best prognosis is noted with the shortest duration of the disease.

About the Authors

E. О. Ivanova
Neurology Research Center
Russian Federation

Ekaterina Olegovna Ivanova

80, Volokolamskoe Shosse, Moscow 125367

E. Yu. Fedotova
Neurology Research Center
Russian Federation

80, Volokolamskoe Shosse, Moscow 125367


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For citations:

Ivanova E.О., Fedotova E.Yu. Functional movement disorders: positive diagnostic criteria. Neurology, Neuropsychiatry, Psychosomatics. 2019;11(1):125-130. (In Russ.)

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ISSN 2074-2711 (Print)
ISSN 2310-1342 (Online)