What might be observed in spontaneous conversation that raises suspicion for AOS?

• A. Always fluent speech with normal rate
• B. Frequent initiation failures, groping, inconsistent errors
• C. Pure aphasia symptoms
• D. Only semantic errors

Answer: (B)

In spontaneous speech, what signals AOS is a pattern of motor planning trouble rather than a language problem. You’ll notice frequent initiation failures, as the speaker struggles to start talking; groping or searching for the right articulatory position as they plan the movements; and errors that are inconsistent across attempts—articulations may vary from one attempt to the next and become more noticeable with longer or more complex utterances. Fluency may not be completely lost, but the speech sounds effortful and halting because the underlying motor program isn’t being reliably formulated.

This contrasts with pure aphasia, where the issue is language formulation itself, so you’d see problems like word-finding, grammar, or comprehension deficits without the characteristic movement planning glitches. Semantic errors alone point to lexical-semantic problems rather than motor planning for speech.

So the observation of initiation difficulty, groping, and inconsistent articulatory errors in spontaneous talk best points to apraxia of speech.