How can chorea disrupt the flow of speech?

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Chorea is a neurological disorder characterized by involuntary, irregular, and sudden jerky movements of the body, including the limbs and facial muscles.1234

When these involuntary movements affect the muscles involved in speech production, they can lead to bizarre, explosive disruptions in the flow of speech. Because chorea involves unpredictable, spasmodic muscle activity, it prevents the smooth, coordinated motor control necessary for clear articulation, resulting in speech that is often characterized by these sudden and erratic interruptions.3