In the context of increased loudness in dysarthria, which finding is reported?

• A. It is associated with increased F0 variation and prosodic changes
• B. It has no effect on prosody
• C. It worsens final-word lengthening
• D. It is not related to prosody

Answer: (A)

Loudness and prosody go hand in hand in dysarthria—the rise in loudness often comes with noticeable changes in the speech melody. When someone speaks louder, you typically see more variation in pitch (fundamental frequency, F0) across segments, along with broader prosodic changes like altered intonation patterns and stress distribution. That connection between louder voice and altered pitch and prosody is why the statement about increased F0 variation and prosodic changes fits best.

The other ideas imply no effect on prosody, or tie loudness to timing features like final-word lengthening, which isn’t the usual or primary association with increased loudness.