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Central auditory processing in normal-hearing elderly adults.

G P Rodriguez1, N J DiSarno, C J Hardiman

  • 1Department of Communication Disorders, Florida State University, Tallahassee.

Audiology : Official Organ of the International Society of Audiology
|January 1, 1990
PubMed
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Aging can affect central auditory processing, even with normal hearing and cognition. The Synthetic Sentence Identification-Ipsilateral Competing Message (SSI-ICM) test is sensitive to these age-related changes.

Area of Science:

  • Audiology
  • Neuroscience
  • Gerontology

Background:

  • Age-related changes in sensory and cognitive functions are common.
  • Central auditory processing (CAP) can be affected by aging, independent of peripheral hearing.
  • Assessing CAP in elderly adults is crucial for understanding communication challenges.

Purpose of the Study:

  • To evaluate central auditory and linguistic functions in cognitively intact elderly adults.
  • To determine if central auditory changes occur independently of peripheral hearing, cognitive, or linguistic decline.
  • To identify the most sensitive measure for detecting age-related changes in CAP.

Main Methods:

  • Study included 25 normal-hearing, cognitively intact elderly adults.
  • Central auditory function assessed using monosyllabic word lists, Synthetic Sentence Identification-Ipsilateral Competing Message (SSI-ICM), Dichotic Digits, and Staggered Spondaic Word tests.

Related Experiment Videos

  • Linguistic competence evaluated with Boston Diagnostic Aphasia and Revised Token tests.

    • Main Results:

    • Central auditory function decline can occur without decreased hearing, cognitive, or linguistic abilities.
    • The SSI-ICM test demonstrated higher sensitivity to age-related changes in CAP.
    • No significant decline in peripheral hearing, cognitive function, or linguistic competence was observed.

    Conclusions:

    • Central auditory processing abilities can be affected by aging, even in healthy older adults.
    • The SSI-ICM test is a valuable tool for monitoring age-related changes in CAP.
    • Maintaining central auditory function is important for effective communication in the elderly.