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- W4313639209 abstract "Purpose: This study examined spontaneous, spoken-to-a-model, and two sung modes in speakers with Parkinson's disease (PD), speakers with cerebellar disease (CD), and healthy controls. Vocal performance was measured by intelligibility scores and listeners' perceptual ratings. Method: Participants included speakers with hypokinetic dysarthria secondary to PD, those with ataxic dysarthria secondary to CD, and healthy speakers. Participants produced utterances in four vocal modes: spontaneous speech, spoken-to-a-model, sung-to-a-model, and spontaneous singing. For spoken-to-a-model and sung-to-a-model modes, written material was provided the model. For spontaneous singing, participants sang songs that they endorsed as familiar. Dependent variables: In Experiment I, listeners orthographically transcribed the audio samples of the first three vocal modes. In Experiment IIa, raters evaluated the accuracy of the pitch and rhythm of the spontaneous singing of familiar songs. Finally, familiar songs and sung-to-a-model utterances were rated on a competency scale by a second group of raters (Experiment IIb). Results: Results showed increases in intelligibility during the spoken-to-a-model mode compared with the spontaneous mode in both PD and CD groups. Singing enhanced the vocal output of speakers with PD more than in speakers with CD, as measured by percent intelligibility. PD participants' pitch and rhythm accuracy and competency in singing familiar songs was rated more favorably than those produced by CD participants. Conclusions: The findings reveal a vocal task effect for spoken utterances in both groups. Sung exemplars, more impaired in CD, suggest a significant involvement of the cerebellum in singing. Supplemental Material: https://doi.org/10.23641/asha.21809544" @default.
- W4313639209 created "2023-01-07" @default.
- W4313639209 creator A5026215003 @default.
- W4313639209 creator A5038954321 @default.
- W4313639209 creator A5048268607 @default.
- W4313639209 date "2023-01-12" @default.
- W4313639209 modified "2023-10-18" @default.
- W4313639209 title "Singing and Speaking Ability in Parkinson's Disease and Spinocerebellar Ataxia" @default.
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- W4313639209 doi "https://doi.org/10.1044/2022_jslhr-22-00274" @default.
- W4313639209 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36608288" @default.