People with UUMN dysarthria commonly report their speech ______ when fatigued or stressed.

Individuals with unilaterally upper motor neuron (UUMN) dysarthria often experience a notable decline in their speech quality under conditions of fatigue or stress. This condition is characterized by weakness and spasticity in the muscles used for speech, primarily affecting articulation, voice quality, and speech intelligibility. These characteristics typically become more pronounced when the person is fatigued or under stress, leading to a noticeable deterioration in speech clarity and fluency.

Stress can heighten muscle tension, and fatigue can exacerbate weakness, making it more difficult for the individual to maintain good speech production. As a result, they might report that their speech worsens, indicating the challenges they face when their physical and emotional resources are compromised.