The search for noise-induced cochlear synaptopathy in humans: Mission impossible?

N Bramhall, EF Beach, B Epp, CG Le Prell… - Hearing research, 2019 - Elsevier
Animal studies demonstrate that noise exposure can permanently damage the synapses
between inner hair cells and auditory nerve fibers, even when outer hair cells are intact and …

The relative contribution of cochlear synaptopathy and reduced inhibition to age-related hearing impairment for people with normal audiograms

M Gómez-Álvarez, PT Johannesen… - Trends in …, 2023 - journals.sagepub.com
Older people often show auditory temporal processing deficits and speech-in-noise
intelligibility difficulties even when their audiogram is clinically normal. The causes of such …

Evidence of cochlear neural degeneration in normal-hearing subjects with tinnitus

V Vasilkov, B Caswell-Midwinter, Y Zhao… - Scientific Reports, 2023 - nature.com
Tinnitus, reduced sound-level tolerance, and difficulties hearing in noisy environments are
the most common complaints associated with sensorineural hearing loss in adult …

Macrophages promote repair of inner hair cell ribbon synapses following noise-induced cochlear synaptopathy

V Manickam, DY Gawande, AR Stothert… - Journal of …, 2023 - Soc Neuroscience
Resident cochlear macrophages rapidly migrate into the inner hair cell synaptic region and
directly contact the damaged synaptic connections after noise-induced synaptopathy …

Middle ear muscle reflex and word recognition in “normal-hearing” adults: evidence for cochlear synaptopathy?

AM Mepani, SA Kirk, KE Hancock, K Bennett… - Ear and …, 2020 - journals.lww.com
Objectives: Permanent threshold elevation after noise exposure, ototoxic drugs, or aging is
caused by loss of sensory cells; however, animal studies show that hair cell loss is often …

Electrophysiological markers of cochlear function correlate with hearing-in-noise performance among audiometrically normal subjects

KJ Grant, AM Mepani, P Wu… - Journal of …, 2020 - journals.physiology.org
Hearing loss caused by noise exposure, ototoxic drugs, or aging results from the loss of
sensory cells, as reflected in audiometric threshold elevation. Animal studies show that loss …

Effects of noise exposure on auditory brainstem response and speech-in-noise tasks: A review of the literature

CG Le Prell - International journal of audiology, 2019 - Taylor & Francis
Objective: Short-term noise exposure that induces transient changes in thresholds has
induced permanent cochlear synaptopathy in multiple species. Here, the literature was …

Effects of lifetime noise exposure on the middle-age human auditory brainstem response, tinnitus and speech-in-noise intelligibility

JT Valderrama, EF Beach, I Yeend, M Sharma… - Hearing research, 2018 - Elsevier
Recent animal studies have shown that the synapses between inner hair cells and the
dendrites of the spiral ganglion cells they innervate are the elements in the cochlea most …

Working memory and extended high-frequency hearing in adults: Diagnostic predictors of speech-in-noise perception

I Yeend, EF Beach, M Sharma - Ear and Hearing, 2019 - journals.lww.com
Objective: The purpose of this study was to identify the main factors that differentiate
listeners with clinically normal or “near-normal” hearing with regard to their speech-in-noise …

Hidden hearing loss impacts the neural representation of speech in background noise

JJM Monaghan, JA Garcia-Lazaro, D McAlpine… - Current Biology, 2020 - cell.com
Many individuals with seemingly normal hearing abilities struggle to understand speech in
noisy backgrounds. To understand why this might be the case, we investigated the neural …