Which of the following is true about apraxia of speech?

Apraxia of speech is characterized by difficulty in planning and coordinating the movements necessary for speech production. One of the hallmarks of apraxia is inappropriate prosody, which refers to the rhythm, stress, and intonation patterns in speech. Individuals with apraxia may speak in a monotone voice or have irregular pitch and stress patterns, which can affect the overall effectiveness and clarity of their communication. This variation in prosody is a critical aspect of apraxia, as it impacts the way words and phrases are delivered.

In contrast, the other options do not accurately reflect the nature of apraxia. It is not diagnosed solely based on consistent speech patterns, since apraxia can present with inconsistent errors in speech. While it does affect both consonant and vowel production, it is not limited strictly to consonants. Moreover, apraxia of speech does not typically resolve by adolescence for most individuals; it can persist into adulthood and may require ongoing therapy and support. Understanding these characteristics is essential for properly identifying and treating individuals with apraxia of speech.