Functional Movement Disorders: Updated Overview

Abstract

Functional movement disorders are relatively common neurological manifestations that are not related to a known neurological or a medical diagnosis. We aim to present an updated overview of this topic and present important diagnostic tips and pitfalls in the management of theses potentially puzzling presentations. Particularly, as such psychosomatic disorders could simulate known disorders, including tremor, paralysis, seizures, or ataxia. This often results in excessive, unnecessary and costly investigations, which may in turn further enhance the sick role and complicates the management. Early recognition and prompt intervention are needed to prevent social and academic disruptions, and hence a debilitating outcome.