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Loudness Perception of Pure Tones in Parkinson's Disease

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Title: Loudness Perception of Pure Tones in Parkinson's Disease
Language: English
Authors: Abur, Defne, Lupiani, Ashling A., Hickox, Ann E., Shinn-Cunningham, Barbara G., Stepp, Cara E.
Source: Journal of Speech, Language, and Hearing Research. Jun 2018 61(6):1487-1496.
Availability: 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
Peer Reviewed: Y
Page Count: 10
Publication Date: 2018
Sponsoring Agency: National Institute on Deafness and Other Communication Disorders (NIDCD)
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) (NIH)
Contract Number: DC015570
HD065688
Document Type: Journal Articles
Reports - Research
Descriptors: Auditory Perception, Acoustics, Intonation, Diseases, Speech Impairments, Rating Scales, Statistical Analysis, Auditory Stimuli
DOI: 10.1044/2018_JSLHR-H-17-0382
ISSN: 1092-4388
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.
Abstractor: As Provided
Entry Date: 2018
Accession Number: EJ1182744
Database: ERIC
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  Data: <searchLink fieldCode="SO" term="%22Journal+of+Speech%2C+Language%2C+and+Hearing+Research%22"><i>Journal of Speech, Language, and Hearing Research</i></searchLink>. Jun 2018 61(6):1487-1496.
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  Data: 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
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  Data: National Institute on Deafness and Other Communication Disorders (NIDCD)<br />Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) (NIH)
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  Data: 10.1044/2018_JSLHR-H-17-0382
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  Data: 1092-4388
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  Data: 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.
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      – Text: English
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