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Intensity Resolution in Individuals With Parkinson's Disease: Sensory and Auditory Memory Limitations.

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Title: Intensity Resolution in Individuals With Parkinson's Disease: Sensory and Auditory Memory Limitations.
Authors: Richardson, Kelly C.1 krichardson@comdis.umass.edu, Sussman, Joan E.2
Source: Journal of Speech, Language & Hearing Research. Sep2019, Vol. 62 Issue 9, p3564-3581. 18p. 2 Diagrams, 4 Charts, 5 Graphs.
Subject Terms: *Memory testing, *Audiometry, *Aging, *Auditory perception, *Memory, *Psychological tests, *Speech perception, *Data analysis, *Adults, Parkinson's disease, Sensory memory, Deafness, Age distribution, Psychoacoustics, Senses, Statistics, Loudness, Data analysis software, Old age
Abstract: Purpose: The purpose of the current study was to examine sensory and auditory memory limitations on intensity resolution in individuals with Parkinson's disease as compared to healthy older and younger adults. Method: Nineteen individuals with Parkinson's disease, 10 healthy age- and hearing-matched adults, and 10 healthy young adults were studied. The listeners participated in 2 intensity discrimination tasks: a lower memory load 4IAX task (sensory limitations) and a higher memory load ABX task (auditory memory limitations). Intensity resolution was examined across groups and tasks using a biasfree measurement of signal detectability known as d' (d-prime). Listeners also participated in a loudness scaling task where they were instructed to rate the loudness level of each signal intensity along the experimental continuum using a computerized 150-mm visual analog scale. Results: Intensity discrimination sensitivity (d') was significantly poorer in the 4IAX and ABX conditions for the individuals with Parkinson's disease, as compared to the older and younger controls. Furthermore, a significant age-related difference was identified for the loudness scaling condition. The younger controls rated most stimuli along the experimental continuum significantly louder as compared to the older controls and the individuals with Parkinson's disease. Conclusions: The present discrimination data suggest sensory and auditory memory limitations may contribute to the intensity resolution issues associated with Parkinson's disease. Age-related differences in loudness scaling will be reviewed. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Speech, Language & Hearing Research is the property of American Speech-Language-Hearing Association and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Education Research Complete
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  Data: Intensity Resolution in Individuals With Parkinson's Disease: Sensory and Auditory Memory Limitations.
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  Data: <searchLink fieldCode="AR" term="%22Richardson%2C+Kelly+C%2E%22">Richardson, Kelly C.</searchLink><relatesTo>1</relatesTo><i> krichardson@comdis.umass.edu</i><br /><searchLink fieldCode="AR" term="%22Sussman%2C+Joan+E%2E%22">Sussman, Joan E.</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Speech%2C+Language+%26+Hearing+Research%22">Journal of Speech, Language & Hearing Research</searchLink>. Sep2019, Vol. 62 Issue 9, p3564-3581. 18p. 2 Diagrams, 4 Charts, 5 Graphs.
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– Name: Abstract
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  Data: Purpose: The purpose of the current study was to examine sensory and auditory memory limitations on intensity resolution in individuals with Parkinson's disease as compared to healthy older and younger adults. Method: Nineteen individuals with Parkinson's disease, 10 healthy age- and hearing-matched adults, and 10 healthy young adults were studied. The listeners participated in 2 intensity discrimination tasks: a lower memory load 4IAX task (sensory limitations) and a higher memory load ABX task (auditory memory limitations). Intensity resolution was examined across groups and tasks using a biasfree measurement of signal detectability known as d' (d-prime). Listeners also participated in a loudness scaling task where they were instructed to rate the loudness level of each signal intensity along the experimental continuum using a computerized 150-mm visual analog scale. Results: Intensity discrimination sensitivity (d') was significantly poorer in the 4IAX and ABX conditions for the individuals with Parkinson's disease, as compared to the older and younger controls. Furthermore, a significant age-related difference was identified for the loudness scaling condition. The younger controls rated most stimuli along the experimental continuum significantly louder as compared to the older controls and the individuals with Parkinson's disease. Conclusions: The present discrimination data suggest sensory and auditory memory limitations may contribute to the intensity resolution issues associated with Parkinson's disease. Age-related differences in loudness scaling will be reviewed. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Speech, Language & Hearing Research is the property of American Speech-Language-Hearing Association and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=ehh&AN=138842109
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        Value: 10.1044/2019_JSLHR-H-18-0424
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        Text: English
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        Type: general
      – SubjectFull: Audiometry
        Type: general
      – SubjectFull: Aging
        Type: general
      – SubjectFull: Auditory perception
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      – SubjectFull: Memory
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      – SubjectFull: Psychological tests
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      – SubjectFull: Speech perception
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      – SubjectFull: Sensory memory
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      – SubjectFull: Deafness
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      – SubjectFull: Age distribution
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      – SubjectFull: Loudness
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      – SubjectFull: Old age
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      – TitleFull: Intensity Resolution in Individuals With Parkinson's Disease: Sensory and Auditory Memory Limitations.
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              Text: Sep2019
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