Loudness Perception of Pure Tones in Parkinson's Disease

Autor/inn/en	Abur, Defne; Lupiani, Ashling A.; Hickox, Ann E.; Shinn-Cunningham, Barbara G.; Stepp, Cara E.
Titel	Loudness Perception of Pure Tones in Parkinson's Disease
Quelle	In: Journal of Speech, Language, and Hearing Research, 61 (2018) 6, S.1487-1496 (10 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/2018_JSLHR-H-17-0382
Schlagwörter	Auditory Perception; Acoustics; Intonation; Diseases; Speech Impairments; Rating Scales; Statistical Analysis; Auditory Stimuli + Suchen Sie Ihr Suchwort? Auditive Wahrnehmung; Akustische Wahrnehmung; Akustik; Disease; Krankheit; Speech impairment; Speech handicap; Speech handicaps; Language handicps; Language impairments; Sprachbehinderung; Rating-Skala; Statistische Analyse; Auditive Stimulation
Abstract	Purpose: Reduced intensity is a hallmark of speech production in Parkinson's disease (PD). Previous work has examined the perception of intensity in PD to explain these speech deficits. This study reports loudness ratings of pure tones by individuals with PD and controls, all with normal thresholds for older adults. Method: Twenty individuals with PD and 23 age- and sex-matched controls rated the loudness of pure tones from 1 ("very soft") to 7 ("uncomfortably loud"). Tones at 500, 750, 1000, 2000, and 4000 Hz were presented from 35 to 80 dB HL (or until a rating of 7 was given). A mixed-model analysis of variance was performed on ratings to assess the effects of group, frequency, sound intensity, and ear. Loudness growth slopes were determined for each participant and analyzed by group. Results: The mean loudness growth slopes of the control and PD groups did not significantly differ. Conclusions: No difference was found in loudness growth slopes in response to externally generated tones in PD. This is in contrast with the findings of previous studies of self-generated speech and externally presented speech. The underlying causes for impaired perception and production of loudness in PD require further investigation. (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	2020/1/01