Singing and Speaking Ability in Parkinson's Disease and Spinocerebellar Ataxia

Autor/inn/en	Kim, Yoonji; Sidtis, Diana; Sidtis, John J.
Titel	Singing and Speaking Ability in Parkinson's Disease and Spinocerebellar Ataxia
Quelle	In: Journal of Speech, Language, and Hearing Research, 66 (2023) 1, S.126-153 (28 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Kim, Yoonji)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
Schlagwörter	Verbal Ability; Singing; Neurological Impairments; Accuracy; Acoustics; Auditory Perception; Intonation; Pronunciation; Intelligibility; Adults + Suchen Sie Ihr Suchwort? Mündliche Leistung; Gesang; Neurodegenerative Erkrankung; Akustik; Auditive Wahrnehmung; Akustische Wahrnehmung; Aussprache
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. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01