How does AOS typically affect phoneme sequencing across words in connected speech?

• A. Errors increase with longer sequences and more complex phoneme movements leading to mis-sequencing and groping
• B. Errors decrease with longer sequences
• C. No errors occur
• D. Only vowels are affected

Answer: (A)

In apraxia of speech, the planning and programming of the motor sequences for speech are impaired. Producing connected speech requires keeping the correct order of phonemes across word boundaries, and longer, more complex sequences place greater demands on that motor plan. As sequence length and movement complexity increase, the chances of sequencing errors rise, leading to mis-sequencing, substitutions, distortions, and groping as speakers search for the right targets. This explains why errors typically worsen with longer sequences. The other options don’t fit: errors don’t vanish with longer sequences, no errors don’t occur, and while vowels can be affected indirectly, the core issue in AOS is disrupted planning of consonant sequences across words, not only vowels.