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Vocal Loudness Response Paper

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Vocal loudness greatly impacts communication in Parkinson’s disease (PD) patients. PD is a progressive condition in which the neurotransmitter dopamine has been depleted. Dopamine, produced mainly in the substantia nigra, is largely responsible for muscle control. Without dopamine, the muscles of the speech mechanisms are restricted in amplitude, range, and flexibility (Duffy, 2013). According to Fox and Ramig (1997), approximately 75% of PD patients exhibit voice and/or speech deficits. In the majority of PD patients, communication is impacted by “soft voice, monotone, breathy, hoarse voice quality and imprecise articulation” (Fox & Ramig, 2007). Fox and Ramig (2007) stated, “Many patients and their families consider the reduced ability …show more content…
Since the previous methods of treatment have yielded insufficient results, this study seeks to compare two methods to determine which is most effective. This study seeks to answer the following questions; Are voice projection exercises more effective than the Lee Silverman Voice Treatment technique at increasing vocal loudness in PD patients? Does perception of vocal loudness contribute to loudness level in PD patients? It is hypothesized that the Lee Silverman Voice Treatment (LSVT) technique is more efficacious at increasing vocal loudness in PD patients than traditional voice projection …show more content…
These exercises include diaphragmatic breathing, varying loudness during speaking tasks, and relaxation of muscles (Williamson, 2014). According to Russell, Ciucci, Connor, & Schallert (2010) “training control of respiration and pitch variations resulted in increased vocal intensity, and improvements in vocal quality, articulation, and intelligibility”. Using respiratory exercise therapy techniques were also found to improve vocal intensity as well as vowel phonation but the results were not sustained long-term (Russell et al.,

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