Vocal Sound Pressure Level and Self-Perception of Speech and Voice in Men and Women With Idiopathic Parkinson Disease

This study compared vocal sound pressure level (SPL) and self-perception of speech and voice in men and women with idiopathic Parkinson disease (PD) and in healthy men and women. Thirty subjects with PD (15 men, 15 women) and 14 healthy comparison (HC) subjects (7 men, 7 women) participated in th…