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Related Experiment Video

Updated: Apr 16, 2026

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
06:04

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Published on: March 24, 2023

951

Electrophysiologic auditory tests.

Alan D Legatt1

  • 1Departments of Neurology and Neuroscience, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY, USA.

Handbook of Clinical Neurology
|March 2, 2015
PubMed
Summary

Auditory evoked potentials offer valuable insights into hearing function and neurological pathways. These electric signals aid in diagnosing hearing loss and monitoring brain activity during surgery.

Keywords:
P300auditory evoked potentialsbrainstem auditory evoked potentialscochlear microphoniccochlear summating potentialeighth-nerve compound action potentialelectrocochleogramevent-related potentialsmismatch negativity

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Area of Science:

  • Neuroscience
  • Audiology
  • Otolaryngology

Background:

  • Auditory stimulation generates complex electrical signals in the auditory system.
  • These signals are crucial for hearing assessment, diagnosis, and research.

Purpose of the Study:

  • To outline the various types of auditory evoked potentials.
  • To describe their applications in clinical diagnosis and research.

Main Methods:

  • Recording electrocochleography (ECoG) components.
  • Measuring auditory nerve and brainstem auditory evoked potentials (BAEPs).
  • Analyzing middle-latency and long-latency auditory evoked potentials.

Main Results:

  • ECoG components like cochlear microphonic and summating potential provide specific diagnostic information.
  • Eighth-nerve compound action potential aids objective audiometry.
  • BAEPs are reliable for diagnostic assessment and intraoperative monitoring.
  • Cortical auditory evoked potentials are valuable research tools despite limitations in clinical use.

Conclusions:

  • Auditory evoked potentials are versatile tools for evaluating the auditory system from the cochlea to the brainstem and cortex.
  • Different components offer unique diagnostic and research capabilities.
  • Understanding these potentials is key for advancements in hearing assessment and neurophysiologic research.