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Related Experiment Videos

Cortical cognitive potentials in elderly persons.

Niels Christian Stenklev1, Einar Laukli

  • 1ENT-Department, University Hospital of Tromsø, Norway. niels.christian.stenklev@unn.no

Journal of the American Academy of Audiology
|September 3, 2004
PubMed
Summary

Aging affects auditory processing. This study found that while cortical cognitive potentials like N200, P300, and N3 decrease with age, response latency increases, indicating slower central auditory processing in older adults.

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Area of Science:

  • Neuroscience
  • Audiology
  • Gerontology

Background:

  • Aging is associated with changes in sensory processing.
  • Central auditory processing efficiency can decline with age.
  • Cortical cognitive potentials offer insights into auditory pathway function.

Purpose of the Study:

  • To investigate age-related alterations in acoustically evoked cortical cognitive potentials (N200, P300, N3).
  • To identify predictors of cortical response presence and characteristics in older adults.
  • To assess the impact of aging on central auditory processing speed.

Main Methods:

  • Utilized an auditory oddball paradigm to elicit cortical cognitive potentials (N200, P300, N3) at Fz.
  • Conducted audiological assessments including pure-tone audiometry and speech recognition tests.

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  • Analyzed data from 232 participants aged 60 and older.

    • Main Results:

    • Cortical responses (N200, P300, N3) were present in 46.9%, 45.1%, and 52.2% of participants, respectively.
    • Participant age and hearing level were significant predictors for cortical response presence.
    • Response latency increased with age, while amplitude showed minimal changes.

    Conclusions:

    • Central auditory processing speed is reduced in the elderly.
    • Age and hearing status significantly influence the elicitation of cortical auditory evoked potentials.
    • Cortical cognitive potentials are valuable tools for assessing age-related auditory changes.