Huntington's Chorea primarily affects which speech systems?

• A. Only articulation
• B. Prosody and resonance only
• C. Articulation, prosody, resonance, phonation, and respiration
• D. Only respiratory functions

Answer: (C)

Huntington's Chorea is a neurological condition that significantly impacts multiple areas of speech production due to its underlying motor control deficiencies. The correct response highlights that the disorder affects articulation, prosody, resonance, phonation, and respiration.

Articulation is compromised because the movements required for precise speech sounds are disrupted, leading to difficulties in producing clear and understandable speech. Prosody, which encompasses the rhythm and melody of speech, is altered due to the irregularities in movement and timing that are characteristic of the disorder. Resonance can be affected as well, as it relates to the airflow and the balance of sound vibrations in the vocal tract, which can be challenged by involuntary movements caused by the condition.

Phonation, or the ability to produce vocal sound, may also be impaired due to fluctuations in muscle control and vocal fold functioning. Lastly, respiration can be impacted as well, since breath support is critical for effective speech and may exhibit irregularities within Huntington's Chorea.

This comprehensive approach to understanding how Huntington's Chorea disrupts various aspects of speech production clarifies the complexity of the disorder and validates the choice that encompasses all five speech systems.