Which task is most directly used to assess motor planning and programming of rapid articulatory sequences?

• A. AMR only.
• B. SMR only.
• C. Both AMR and SMR.
• D. Neither AMR nor SMR.

Answer: (B)

The key idea is understanding what each task tests in terms of planning and sequencing of speech movements. Repeating a single syllable as quickly as possible (AMR) primarily measures how fast and accurately the same articulatory gesture can be produced over and over. It reflects speed and rhythm of a single movement pattern rather than the orchestration of multiple movements in a specific order.

In contrast, rapid sequencing of different syllables (SMR) requires coordinating a set of distinct articulatory gestures in a precise order and timing. This taps directly into motor planning and programming because the speaker must organize the sequence of movements as a whole, not just repeat one movement pattern. That’s why SMR is the task most directly used to assess motor planning and programming of rapid articulatory sequences.

So, the best choice emphasizes SMR, since it specifically challenges the planning and programming of rapid, sequential articulator movements. AMR, while useful for other aspects of speech motor control, doesn’t target the sequencing demands as directly.