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Case Studies | Speech Language Pathology | India | Volume 13 Issue 1, January 2024 | Rating: 5.2 / 10
Progressive Speech Function Deterioration in Parkinson's Disease: A Four - Month Study of Marathi - Speaking Individuals
Mital Bar | Rohini Chand - Mall
Abstract: Introduction: A large number of individuals with Parkinson's disease (PD) develop problems with speech. Around 80?90% experience voice changes; 45?50% shows alterations in articulation. Perceptually, speech is typified as monopitched, monoloud, imprecise and dysfluent. Associated acoustic changes can be voice fundamental frequency (F0), reduced variability of F0, decreased sound intensity, lower harmonic to noise ratio. The progressive deterioration patients experience can be physically, emotionally, and financially devastating. This study focused on changes in speech functions (if any) of individuals with PD over a period of 4 months. Materials and Method: A total of 12 Marathi speaking individuals with PD mean age of 66 years were included in the study. Assessments included a detailed case history, clinical assessment of dysarthria (DAP), and cognitive screening (MOCA). The speech functions were assessed trice; initial assessment (1st Assessment), assessment after 2 months (2nd Assessment), and assessment after 4 months (3rd Assessment) on each participant over a period of 4 months. Speech functions were assessed perceptually and acoustically. Results and Conclusions: Present study documented change in speech functions perceptually as well as acoustically in individuals with PD over a period of 4 months. There was a significant difference found across 3 assessments for oro - motor structures, oro - motor functions and speech sub - system and acoustic of speech in individuals with PD. Thus, it indicated deterioration in oro - motor structures, oro - motor functions, one or more parameters of speech sub - systems, however not in speech intelligibility of individuals with PD. Speech Characteristics in Individuals with Parkinson?s disease: A Follow up Study
Keywords: Acoustic analysis, Dysarthria, Parkinson's disease, Speech intelligibility, Speech sub - system
Edition: Volume 13 Issue 1, January 2024,
Pages: 865 - 872