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To address this, this study simultaneously recorded compound action potentials (CAPs) and auditory brainstem responses (ABRs) in young, normal-hearing adults using both clicks and level-specific chirps. Amplitude- and latency-growth functions revealed robust, level-dependent differences between peripheral and brainstem responses, with chirps producing larger amplitudes and improved peak detectability. The study further evaluated a modeling framework in which simulated auditory nerve responses were convolved with individualized unitary responses to predict AEP waveforms. The model reproduced key CAP and ABR features\u2014particularly at higher intensities\u2014but showed systematic deviations at lower levels. Overall, the results support the utility of a linear convolution approach for linking cochlear and brainstem responses under normal-hearing conditions. While this dataset provides a rigorously controlled reference, larger cohorts will be needed to fully capture inter-individual variability. By integrating high-quality physiological measurements with computational modeling, this work lays the foundation for individualized diagnostics and advances a mechanistic understanding of early auditory processing.<\/jats:p>","DOI":"10.1121\/10.0041759","type":"journal-article","created":{"date-parts":[[2025,12,9]],"date-time":"2025-12-09T13:15:58Z","timestamp":1765286158000},"page":"4512-4524","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":1,"title":["Amplitude- and latency-growth functions of human electrocochleographic and brainstem responses"],"prefix":"10.1121","volume":"158","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1969-4802","authenticated-orcid":false,"given":"Miguel","family":"Temboury-Gutierrez","sequence":"first","affiliation":[{"name":"Hearing Systems Section, Department of Health Technology, Technical University of Denmark 1 , Kongens Lyngby, 2800,","place":["Denmark"]},{"name":"Copenhagen Hearing and Balance Center; Ear, Nose and Throat (ENT) and Audiology Clinic, Rigshospitalet, Copenhagen University Hospital 2 , Copenhagen 2100,","place":["Denmark"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0632-3180","authenticated-orcid":false,"given":"Orsolya","family":"Megyik","sequence":"additional","affiliation":[{"name":"Hearing Systems Section, Department of Health Technology, Technical University of Denmark 1 , Kongens Lyngby, 2800,","place":["Denmark"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7928-7232","authenticated-orcid":false,"given":"Gerard","family":"Encina-Llamas","sequence":"additional","affiliation":[{"name":"Copenhagen Hearing and Balance Center; Ear, Nose and Throat (ENT) and Audiology Clinic, Rigshospitalet, Copenhagen University Hospital 2 , Copenhagen 2100,","place":["Denmark"]},{"name":"Faculty of Medicine, University of Vic\u2014Central University of Catalonia (UVic-UCC) 3 , Vic, Catalonia 08500,","place":["Spain"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8110-4343","authenticated-orcid":false,"given":"Torsten","family":"Dau","sequence":"additional","affiliation":[{"name":"Hearing Systems Section, Department of Health Technology, Technical University of Denmark 1 , Kongens Lyngby, 2800,","place":["Denmark"]},{"name":"Copenhagen Hearing and Balance Center; Ear, Nose and Throat (ENT) and Audiology Clinic, Rigshospitalet, Copenhagen University Hospital 2 , Copenhagen 2100,","place":["Denmark"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"231","published-online":{"date-parts":[[2025,12,9]]},"reference":[{"key":"2025120908155350500_c1","doi-asserted-by":"publisher","first-page":"2376","DOI":"10.1121\/10.0017863","article-title":"Computational modeling of the human compound action potential","volume":"153","year":"2023","journal-title":"J. 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