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Effects of age, speech rate, and type of test on temporal auditory processing.

Cognitive slowing that accompanies aging may be reflected in temporal aspects of auditory processing. The purpose of this study was to investigate the effects of age, type of test, and rate of speech on temporal auditory processing. Listeners were divided into three groups: young (25- to 35-year-old...

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Published in:Journal of Speech, Language & Hearing Research Vol. 40; no. 5; pp. 1192 - 1201
Main Authors: Vaughan NE, Letowski T
Format: research tables/charts Journal Article
Published: American Speech-Language-Hearing Association Oct1997
Online Access:View this record in EBSCOhost
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      dt: Oct1997
      vid: 40
      iid: 5
      pid: 42
      pub: American Speech-Language-Hearing Association
      place: Rockville, Maryland
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        10.1044/jslhr.4005.1192
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        atl: Effects of age, speech rate, and type of test on temporal auditory processing.
      aug:
        au:
          Vaughan NE
          Letowski T
        affil: Department of Speech and Hearing Sciences, Washington State University, 601 West First Avenue, Spokane, WA 99204-0399
      sug:
        subj:
          Aging Physiology
          Speech Physiology
          Speech Perception
          Male
          Female
          Adult
          Middle Age
          Aged
          Age Factors
          Cognition
          Sex Factors
          Time Factors
          Hypothesis
          Comparative Studies
          Research Subject Recruitment
          Questionnaires
          Self Report
          Educational Status
          Audiometry, Pure-Tone
          Software
          Descriptive Statistics
          Algorithms
          Analysis of Variance
          Repeated Measures
          P-Value
          Statistical Significance
          Human
          Adult: 19-44 years
          Middle Aged: 45-64 years
          Aged: 65+ years
          Male
          Female
      ab: Cognitive slowing that accompanies aging may be reflected in temporal aspects of auditory processing. The purpose of this study was to investigate the effects of age, type of test, and rate of speech on temporal auditory processing. Listeners were divided into three groups: young (25- to 35-year-olds), middle aged (45- to 55-year-olds), and older (65- to 75-year-olds). A method of time compression known as Synchronized Overlap Add (SOLA) was used to increase the rate of speech. This method provides a high-quality speech signal and limits the distortions that may confound the temporal effects on time-compressed tests of speech intelligibility. Listeners performed four speech understanding tasks: sentence repetition, sentence intelligibility rating, connected discourse intelligibility rating, and connected discourse comprehension question and answers at three timecompression rates (60%, 70%, and 80%). Although the older group performed more poorly on all tests, only the connected discourse intelligibility rating test was sensitive to age differences among all three groups. This difference did not appear to increase with rate increases but was present only at the 70% compression rate. In addition, variability was especially high in the oldest group of participants.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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