Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

PDF

MSU Graduate Theses

Theses/Dissertations

2022

Electrocochleography

Articles 1 - 2 of 2

Full-Text Articles in Entire DC Network

Effect Of Electrocochleography Stimulus Rate And Intensity On Identification Of Noise Induced Hidden Hearing Loss In Humans, Amanda E. Mccarthy Jan 2022

Effect Of Electrocochleography Stimulus Rate And Intensity On Identification Of Noise Induced Hidden Hearing Loss In Humans, Amanda E. Mccarthy

MSU Graduate Theses

Noise exposure has been known to cause both temporary and permanent shifts in hearing thresholds in humans. Animal and human studies have shown noise exposure to lead to damage to the ribbon synapses of the cochlea. This damage, referred to as noise induced hidden hearing loss (NIHHL), is not detectable with standard hearing assessments, though can be the cause of difficulties understanding speech in the presence of background noise. Recent studies have begun to explore the use of electrocochleography (ECochG) to detect this neural damage in humans. Such studies strive to aid in the development of a clinical tool for …


Modulation Of Electrocochleography Responses By Contralateral Broadband Noise In Young Adults, Riley J. Rickman Jan 2022

Modulation Of Electrocochleography Responses By Contralateral Broadband Noise In Young Adults, Riley J. Rickman

MSU Graduate Theses

While it is known the auditory efferent system contains two distinct subgroups – the medial olivocochlear nucleus (MOC) and the lateral olivocochlear nucleus (LOC) – not much is known regarding the function of the LOC in humans. This study aims to evaluate the effect of activating the lateral olivocochlear (LOC) neurons via contralateral broad band noise (CBBN) on electrocochleography responses. A ten-minute time-blocked paradigm was utilized to evaluate both the slow and fast effect of the LOC neurons. Recordings were obtained at four points within this ten-minute block both with and without the presence of 50 dB SPL CBBN to …