How does lengthened segments manifest in AOS?

• A. Prolonged vowels or consonants and noticeable pauses between phoneme sequences
• B. Shortened vowels or rapid speech
• C. No change in duration
• D. Sudden bursts of loudness with rapid articulators

Answer: (A)

Lengthened segments in apraxia of speech come from a motor planning difficulty that makes it hard to smoothly program the timing of each articulatory movement. Because the plan for producing a sequence of sounds isn’t finalized quickly, speakers stretch out the sounds and insert noticeable pauses between groups of phonemes as they search for the right movements. You’ll often hear vowels or consonants held longer than normal, with gaps between the fragments of speech while the next sequence is organized.

Other patterns listed don’t fit this profile. Shortened vowels or rapid speech imply faster production rather than the planning-driven slowing seen in AOS. No change in duration would not reflect the planning difficulty, and sudden bursts of loudness with rapid articulators aren’t characteristic of the typical timing issues in AOS.