Open AccessWeakened Cochlear Nonlinearity During Human Aging and Perceptual Correlates
Author(s) -
Carolina Abdala,
Amanda Ortmann,
Yeini Guardia
Publication year - 2021
Publication title -
ear and hearing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.577
H-Index - 109
eISSN - 1538-4667
pISSN - 0196-0202
DOI - 10.1097/aud.0000000000001014
Subject(s) - audiology , perception , speech perception , psychology , speech recognition , cognitive psychology , neuroscience , medicine , computer science
As humans age, compressive nonlinearity-a hallmark of healthy cochlear function-changes. The nonlinear distortion-component of the distortion product otoacoustic emission (DPOAE) provides a noninvasive gauge of cochlear nonlinearity. Earlier published work has suggested that weakened nonlinearity begins in middle age; the current work extends this investigation into the eight decade of life using advanced DPOAE data collection and analysis methods as well as multiple metrics of nonlinearity, including a test of loudness scaling.