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Auditory Perception01:17

Auditory Perception

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The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the...
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Related Experiment Video

Updated: Sep 22, 2025

Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R
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Changes in the peripheral and central auditory performance in the elderly-A cross-sectional study.

Dominik Pürner1,2, Volker Schirkonyer1, Thomas Janssen1

  • 1Department of Otorhinolaryngology, Experimental Audiology, University hospital rechts der Isar of the Technical University of Munich, Munich, Germany.

Journal of Neuroscience Research
|May 23, 2022
PubMed
Summary

Age-related hearing loss (ARHL) affects all auditory system parts due to aging and hearing loss. This study provides evidence for a central ARHL component independent of peripheral hearing impairment.

Keywords:
age-related hearing loss (ARHL)auditory brainstem response (ABR)central auditory discriminationcentral presbycusisotoacoustic emissions

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Area of Science:

  • Audiology
  • Neuroscience
  • Gerontology

Background:

  • Age-related hearing loss (ARHL), or presbycusis, is common but its exact causes are debated.
  • The role of central auditory system changes in ARHL is not fully understood.

Purpose of the Study:

  • To differentiate between aging effects and hearing loss effects on the auditory system.
  • To investigate the existence of a central ARHL component independent of peripheral hearing loss.

Main Methods:

  • Cross-sectional study comparing three groups: young healthy, elderly healthy, and elderly hearing-impaired.
  • Utilized a comprehensive topodiagnostic test battery including audiology and central auditory tests.
  • Included otoscopy, tympanometry, pure-tone audiometry, DPOAEs, ABR, and speech-in-noise tests.

Main Results:

  • Significant auditory performance decline in the elderly, linked to both aging and ARHL.
  • All auditory system parts showed impairment from aging, hearing loss, or both.
  • Central auditory discrimination tests suggested a central ARHL component separate from peripheral loss.

Conclusions:

  • ARHL has a multifocal origin, affecting all auditory system levels.
  • Aging itself impacts auditory function, independent of hearing loss.
  • Evidence supports an independent central component of ARHL.