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Auditory Perception

Auditory Perception

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 cochlea, a...

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Related Experiment Video

Updated: Jun 24, 2026

Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice

Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice

Published on: January 9, 2019

Evaluating Changes in Adult Cochlear Implant Users' Brain and Behavior Following Auditory Training.

Eun Kyung Jeon¹, Virginia Driscoll², Bruna S Mussoi³

¹Department of Communication Sciences and Disorders, University of Iowa, Iowa City, Iowa, USA.

Ear and Hearing

|July 24, 2024

Summary

Auditory training improved pitch discrimination in cochlear implant (CI) users, but physiological measures did not predict these gains. Further research is needed to optimize CI auditory training protocols.

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Last Updated: Jun 24, 2026

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

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Published on: March 24, 2023

Area of Science:

Neuroscience
Audiology
Biomedical Engineering

Background:

Cochlear implants (CIs) restore some hearing but do not fully replicate natural auditory function.
Auditory training aims to improve speech perception and sound processing in CI users.
Understanding the relationship between behavioral and physiological responses to auditory training is crucial for optimizing rehabilitation.

Purpose of the Study:

To evaluate the impact of two distinct auditory training programs on behavioral and physiological auditory function in CI users.
To investigate the correlation between behavioral improvements and objective electrophysiological measures post-training.

Main Methods:

Two experiments utilized within-subject designs with CI users.
Experiment I involved a month-long music-based auditory training (laboratory and home-based).
Experiment II focused on a single 40-minute session of spectral ripple modulation depth detection training.

Main Results:

Significant improvements in behavioral pitch discrimination were observed after music-based training (Experiment I).
No significant changes in electrophysiological measures (auditory N1-P2, acoustic change complex - ACC) were found in either experiment.
Behavioral spectral ripple modulation depth thresholds improved slightly after short-term training (Experiment II).

Conclusions:

Auditory training can enhance spectral cue perception in CI users.
Cortical electrophysiological responses (ACC) did not reliably predict training benefits.
Further research should explore individual factors and optimize training protocols and outcome measures for CI users.