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Age-related changes in auditory processing and speech perception: cross-sectional and longitudinal analyses

Author

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  • Harvey Babkoff

    (Bar-Ilan University
    Ashkelon Academic College)

  • Leah Fostick

    (Ariel University)

Abstract

Age-related differences in speech perception have been shown in previous cross-sectional studies to be related to auditory temporal processing. We examined this association in both cross-sectional and longitudinal designs, controlling for age-related changes in hearing sensitivity and cognitive ability. Fifty-eight participants were tested in two phases. In phase 1, ages ranged between 22 and 82 years. Phase 2 occurred seven years later. In both phases, participants performed auditory processing tasks, speech perception tests, and cognitive tasks. In both phases, age correlated with hearing level, auditory temporal processing thresholds, word recognition accuracy in noise, and compressed speech. Auditory temporal processing thresholds were correlated with word recognition accuracy in narrowband noise and compressed speech. Longitudinal analysis showed significant decreases in performance from phase 1 to phase 2 in hearing level, dichotic TOJ thresholds, and word recognition accuracy. Steeper slopes were observed in phase 2 than in phase 1 for correlations between age, hearing level, and word recognition accuracy in narrowband noise, but not for age and dichotic TOJ thresholds. Generalized estimating equations revealed an overall decrease in word recognition accuracy from phase 1 to phase 2; this decrease was larger for older participants. Increases in dichotic TOJ and gap detection thresholds were associated with a decrease over time in speech in narrowband and broadband noise, and compressed speech, even when adjusted for age, hearing level, and cognitive ability. These results show that both cross-sectional and longitudinal designs yield similar significant associations between temporal processing and speech perception, even when adjusted for hearing level and cognitive ability.

Suggested Citation

  • Harvey Babkoff & Leah Fostick, 2017. "Age-related changes in auditory processing and speech perception: cross-sectional and longitudinal analyses," European Journal of Ageing, Springer, vol. 14(3), pages 269-281, September.
    • Handle: RePEc:spr:eujoag:v:14:y:2017:i:3:d:10.1007_s10433-017-0410-y
    DOI: 10.1007/s10433-017-0410-y
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    References listed on IDEAS

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    1. Patrick Rabbitt & Peter Diggle & Fiona Holland & Lynn McInnes, 2004. "Practice and Drop-Out Effects During a 17-Year Longitudinal Study of Cognitive Aging," The Journals of Gerontology: Series B, The Gerontological Society of America, vol. 59(2), pages 84-97.
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    Cited by:

    1. Leah Fostick, 2019. "Card playing enhances speech perception among aging adults: comparison with aging musicians," European Journal of Ageing, Springer, vol. 16(4), pages 481-489, December.

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