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Related Experiment Videos

Fast noisy speech: age differences in processing rapid speech with background noise

P A Tun1

  • 1Volen National Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02254-9110, USA. tun@binah.cc.brandeis.edu

Psychology and Aging
|October 30, 1998
PubMed
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Older adults struggle more with background noise during speech processing, especially at faster speech rates. This age-related decline is linked to slower processing and reduced attention to distracting sounds.

Area of Science:

  • Auditory Neuroscience
  • Gerontology
  • Speech Perception

Background:

  • Age significantly impacts sensory processing, including auditory perception.
  • Understanding speech in noisy environments is crucial for daily communication.
  • Previous research indicates potential age-related declines in auditory processing.

Purpose of the Study:

  • To investigate age-related differences in speech-in-noise (SPIN) processing.
  • To examine how speech rate and background noise intensity affect older and younger adults' SPIN abilities.
  • To identify underlying mechanisms contributing to age-related deficits in auditory comprehension.

Main Methods:

  • Recruitment of younger and older adult participants.
  • Presentation of time-compressed spoken sentences with varying levels of background babble.

Related Experiment Videos

  • Assessment of sentence intelligibility and noise tolerance through auditory reporting.

    • Main Results:

    • No significant age differences were observed in pure tone averages or sentence intelligibility in quiet.
    • Older adults demonstrated significantly lower tolerance for background babble compared to younger adults.
    • The performance gap between age groups widened considerably with increased speech compression rates.

    Conclusions:

    • Older adults exhibit reduced tolerance to background noise, impacting speech understanding.
    • Age-related deficits in speech processing are exacerbated by increased processing speed demands.
    • Slower cognitive processing and diminished inhibition of irrelevant auditory stimuli likely contribute to age-related speech-in-noise challenges.