Which of the following is NOT included in the DAB classification of Ataxic Dysarthria?

• A. Articulatory inaccuracy
• B. Prosodic excess
• C. Cognitive impairments
• D. Phonatory-prosodic insufficiency

Answer: (C)

The classification of Ataxic Dysarthria as described in the Duffy's Approach to Motor Speech Disorders (often referred to as the DAB classification) typically focuses on speech characteristics that arise from the specific motor difficulties associated with the condition. Ataxic Dysarthria is primarily characterized by issues in coordination, leading to speech features such as articulatory inaccuracy, prosodic excess, and phonatory-prosodic insufficiency.

Articulatory inaccuracy refers to the imprecision and inconsistency in the production of speech sounds, while prosodic excess includes variable stress or pacing that impacts the rhythm of speech. Phonatory-prosodic insufficiency reflects difficulties with vocal quality and prosody, which can result in a less dynamic speaking style. These features are direct outcomes of the neuromuscular control issues that characterize ataxic dysarthria.

Cognitive impairments, while they can certainly co-occur with various speech disorders, are not a typical characteristic associated specifically with Ataxic Dysarthria itself, as DAB focuses primarily on the motor aspects of speech production rather than cognitive dimensions. Thus, it does not fall within the parameters of this classification system.