NCVS Insights
Is It Self-Awareness or Is It Sensory Feedback? Difficulties in Self-Perception of One's Own Voice in People with Parkinson's Disease
Parkinson’s disease (PD) is widely known for its impact on movement: tremor, rigidity, and slowed gait. Less visible, but equally disabling, are the changes it imposes on the voice (Duffy, 2020). Most people with PD (PwPD) develop hypokinetic dysarthria, the first symptom of which is usually reduced vocal intensity (a hallmark of hypophonia), along with a diminished pitch range and reduced articulatory precision (Duffy, 2020). These changes compromise communication quality and, consequently, social participation an …