Progress and Prospects in Parkinson's Research/Symptoms/Hypophonia

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Hypophonia

Reduced vocal force

The following references are relevant:-

Russell et al (2010)  Targeted exercise therapy for voice and swallow in persons with Parkinson’s disease 

Hammer et al (2010) Subthalamic nucleus deep brain stimulation changes speech respiratory and laryngeal control in Parkinson's disease 

Darling and Huber (2011) Changes to Articulatory Kinematics in Response to Loudness Cues in Individuals with Parkinson’s Disease

Further Research

References