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Auditory processing from the perspective of auditory electrophysiological assessment
Pedro de Lemos Menezes1, Kelly Cristina Lira de Andrade1, Ana Figueiredo Frizzo2
1Programa Associado de Pós-graduação em Fonoaudiologia - PPGFON, Universidade Estadual de Ciências da Saúde de Alagoas - UNCISAL - Maceió (AL), Brasil.
Codas
|February 4, 2026
Summary
Auditory evoked potentials (AEPs) reveal how the auditory system processes sound, from basic encoding to complex semantic understanding. These electrophysiological tools aid in diagnosing auditory disorders and monitoring performance.
Area of Science:
- Neuroscience
- Auditory Neuroscience
- Electrophysiology
Background:
- The auditory system transforms complex acoustic signals into neural representations for perception and cognition.
- Electrophysiological methods, particularly auditory evoked potentials (AEPs), offer objective measures of auditory system function.
Purpose of the Study:
- To elucidate sound processing within the auditory system using auditory evoked potentials.
- To review the role of AEPs in assessing auditory encoding, decoding, discrimination, perception, and semantic congruence.
Main Methods:
- A comprehensive literature review of classical and contemporary studies on auditory processing and electrophysiological assessment.
- Inclusion of studies investigating the relationship between AEPs and various stages of auditory information processing.
Main Results:
- AEPs demonstrate the auditory system's capacity to encode acoustic features (frequency, intensity, temporal modulations) into neural signals.
- Specific AEPs, including frequency-following responses (FFRs) for speech encoding and cortical AEPs for advanced processing, provide insights into auditory function.
- The N400 component of cortical AEPs is linked to semantic congruence, highlighting cognitive aspects of auditory processing.
Conclusions:
- Auditory evoked potentials are crucial for evaluating auditory processing across diverse populations.
- AEPs serve as valuable tools for diagnosing auditory processing disorders and monitoring auditory performance over time.
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