What is a sign of ataxic dysarthria?

• A. Difficulty with reading
• B. Involuntary eye movement
• C. Hyperactive reflexes
• D. Improper grammar usage

Answer: (B)

Ataxic dysarthria is characterized by its origins in cerebellar dysfunction, leading to issues in coordinating the movements required for speech. This type of dysarthria presents with a range of symptoms, including irregular pacing and imprecise articulation, which stems from the disruption in motor control.

Involuntary eye movement, often referred to as nystagmus, can be associated with cerebellar disorders, including ataxic dysarthria. This involuntary movement of the eyes can occur due to cerebellar damage, which can accompany conditions that also lead to ataxic dysarthria.

While the other options relate to various neurological conditions or speech issues, they are not specifically signs of ataxic dysarthria. Difficulty with reading often relates more to language processing or literacy skills, hyperactive reflexes typically suggest upper motor neuron lesions, and improper grammar usage pertains more to language formulation than to the motor speech aspect specifically characteristic of ataxic dysarthria. Consequently, the presence of involuntary eye movement serves as a relevant sign in identifying cerebellar involvement and, by extension, ataxic dysarthria.