Complex evoked Auditory Brainstem Response

Moussa, Shahenda Abdelmateen; Abdelrahman, Mohamed Abelgaffar; Elsayed, Salwa Mourad; Ahmed, Gehad Fawzy

doi:10.21608/smj.2025.364955.1545

	Complex evoked Auditory Brainstem Response
Sohag Medical Journal
Volume 29, Issue 2, 2025, Page 23-27 PDF (1.12 MB)
Document Type: Review Article
DOI: 10.21608/smj.2025.364955.1545
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Authors
Shahenda Abdelmateen Moussa ¹; Mohamed Abelgaffar Abdelrahman²; Salwa Mourad Elsayed³; Gehad Fawzy Ahmed⁴
¹Audiovestibular unit, Otolaryngology Department. Faculty of medicine, Sohag university
²Audiovestibular medicine, Otolaryngology Department, Faculty of medicine, Sohag University
³Audiovestibular, ENT, facultyy of medicine, Sohag university, Sohag
⁴Audiovestibular unit, otorhinolaryngology department, Faculty of medicine, Sohag university
Abstract
An extremely helpful method for evaluating brainstem neuronal function is the auditory brainstem response (ABR). Clicks or bursts of tone can evoke it. However, subsequent studies have demonstrated that complex stimuli, including spoken stimuli, music, and complex tones, can also elicit a response. (e.g., /da/, /ba/, and /ga/) (1). Among other aspects of the acoustic structure of speech, the complex-evoked ABR provides unique neural representations of speech sound offset, phase-locking to the fundamental and formant frequencies, and speech sound onset (2). An indicator of subcortical speech processing is the speech evoked auditory brainstem response (S-ABR). A voice stimulus is especially beneficial since it can illustrate how the brainstem maintains temporal and spectral information (1). Compared to normal controls, the introduction of complex stimuli increases sensitivity to minute variations in impaired populations more than clicks or tone bursts do (3). S-ABR is helpful for assessment, recording treatment results, and tracking improvements because of its high reliability and consistency across time (4).
Keywords
ABR; S-ABR; neural generator; waveform
Supplementary Files smj.2025.364955.pdf

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