A stroke resulting in reduced speech intelligibility due to impaired motor programming is best described as which condition?

• A. Dysarthria
• B. Dementia
• C. Aphasia
• D. Apraxia of Speech

Answer: (D)

Motor planning for speech is being examined here. When the brain has trouble sequencing and programming the precise movements of the lips, tongue, and jaw for speech after a stroke, the result is apraxia of speech. The person often understands language and knows what to say, but producing the correct sounds is effortful and inconsistent, with groping and variable errors. Strength of the speech muscles is typically preserved, and non-speech oral movements are normal. This helps distinguish it from dysarthria (muscle weakness/coordination problems causing slurred speech) and from aphasia (a language processing disorder), while dementia would show broader cognitive decline. Thus, the description fits apraxia of speech.