Dysarthria subgroups in talkers with Huntington's disease: Free classification versus feature-constrained classification
| Autor: | Daniel O. Claassen, Daniel Kim, Michael de Riesthal, Antje Mefferd, Sarah Diehl |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
Acoustics and Ultrasonics media_common.quotation_subject Audiology medicine.disease Dysarthria Arts and Humanities (miscellaneous) Huntington's disease Rating scale Perception Similarity (psychology) Feature (machine learning) medicine medicine.symptom Set (psychology) Psychology media_common |
| Zdroj: | The Journal of the Acoustical Society of America. 148:2582-2583 |
| ISSN: | 0001-4966 |
| DOI: | 10.1121/1.5147170 |
| Popis: | In our recent study (Diehl et al., 2019), we examined the perceptual speech features of 48 talkers with Huntington's disease (HD) using the classic feature-based dysarthria rating scale (Darley et al., 1969). A cluster analysis based on speech feature ratings revealed four dysarthria subgroups within our cohort of talkers with HD. Talkers within each subgroup shared deviant speech features that set them apart from talkers with HD in other subgroups. Presumably, talkers with similar patterns of deviant speech features sound alike. In the current study, we will test this notion using a free classification approach. Specifically, 20 naive listeners will be asked to sort the speech samples of 48 talkers with HD that were used in the previous study into similar-sounding groups. Each listener's grouping decision will be submitted to an additive similarity tree cluster analysis to determine dysarthria subgroups based on the free classification task. Moreover, subgroup-specific speech features will be determined based on the previously established perceptual ratings of the classic dysarthria rating scale. Study outcomes will provide insights into the saliency of specific perceptual speech features in talkers with HD. |
| Databáze: | OpenAIRE |
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