Which type of dysarthria is primarily characterized by reduced range and speed of speech movements?

• A. Mixed Dysarthria
• B. Spastic Dysarthria
• C. Hypokinetic Dysarthria
• D. Ataxic Dysarthria

Answer: (C)

The type of dysarthria characterized primarily by reduced range and speed of speech movements is hypokinetic dysarthria. This condition is often associated with disorders that affect the basal ganglia, such as Parkinson's disease. In hypokinetic dysarthria, individuals may exhibit a decrease in the amplitude (range) of their speech movements, leading to a softer, slower, and often more monotone voice. This reduction in the speed of movement can manifest in various ways, such as a shuffling or less dynamic quality to speech, affecting clarity and naturalness.

The features of hypokinetic dysarthria align closely with the symptoms observed in conditions like Parkinson's, where rigidity and bradykinesia (slowness of movement) play a substantial role. As a result, it is essential to recognize hypokinetic dysarthria's distinct characteristics, which directly impact an individual's communication abilities.