1980
DOI: 10.1126/science.7414321
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Changes in Endolymphatic Potential and Crossed Olivocochlear Bundle Stimulation Alter Cochlear Mechanics

Abstract: Mechanical nonlinearity in the cochlea produces acuoustic distortion products that can be measured in the ear canal. These distortion products can be altered by changes in the endolymphatic potential as well as by stimulation of the crossed olivocochlear bundle, which provides efferent innervation to cochlear hair cells.

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Cited by 432 publications
(150 citation statements)
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“…MOC influence on cochlear mechanics may be noninvasively, though indirectly, explored via measurement of otoacoustic emissions (OAEs) (Mountain 1980;Siegel and Kim 1982). OAEs are sounds recorded in the ear canal (Kemp 1978) that originate as a by-product of cochlear amplification and are sensitive indicators of OHC function.…”
Section: Introductionmentioning
confidence: 99%
“…MOC influence on cochlear mechanics may be noninvasively, though indirectly, explored via measurement of otoacoustic emissions (OAEs) (Mountain 1980;Siegel and Kim 1982). OAEs are sounds recorded in the ear canal (Kemp 1978) that originate as a by-product of cochlear amplification and are sensitive indicators of OHC function.…”
Section: Introductionmentioning
confidence: 99%
“…As MOC fibers directly innervate OHCs, their activity modifies the input impedance and membrane potential of OHCs (Housley and Ashmore 1991), affecting the mechanical feedback that they provide to basilar membrane motion (Mountain 1980;Siegel and Kim 1982;Murugasu and Russell 1996;Cooper and Guinan 2003). These changes reduce the cochlear-amplifier gain, producing a decrease in auditory-nerve compound action potentials (CAP) and an increase in cochlear microphonics (CM) amplitudes that reflects a higher voltage drop caused by the increase of current flow through OHCs and the cochlear circuit .…”
Section: Introductionmentioning
confidence: 99%
“…These length changes are one likely source of acoustically evoked otoacoustic emissions (Kemp 1978;Kim 1980;Mountain 1980). Intracochlear AC stimulation produces sound in the ear canal as electrically evoked otoacoustic emissions (EEOAE) (Hubbard and Mountain 1983;Mountain and Hubbard 1989;Murata et al 1991;Ren and Nuttall 1995).…”
Section: Introductionmentioning
confidence: 99%