Abstract
Otoacoustic emissions have been demonstrated to have a cochlear origin (Kemp, 1978; Wilson, 1980; Kemp, 1986). They may reflect the existence of an active mechanism (Davis, 1983), which is responsible for the exquisite sensitivity and frequency discrimination of the cochlea. This active mechanism is probably based upon the motile properties of outer hair cells (OHCs) (Brownell et al., 1985; Zenner, 1986). The neurons of the medial efferent system (Warr and Guinan, 1979) form huge synapses, probably cholinergic (Eybalin and Pujol, 1987), with the OHC base, in such a way that a modulation of some of the OHC motile properties could well be postulated. Indeed, an electrical stimulation of the crossed part of the medial efferent bundle has been found to modify cochlear mechanics (Mountain, 1980; Siegel and Kim, 1982). In addition, a section of the same bundle alters the masking phenomenon (Carlier and Pujol, 1982; Bonfils et al., 1986; Bonfils and Puel, 1987).
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© 1989 Plenum Press, New York
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Puel, JL., Rebillard, G., Bonfils, P., Pujol, R. (1989). Effect of Visual Selective Attention on Otoacoustic Emissions. In: Wilson, J.P., Kemp, D.T. (eds) Cochlear Mechanisms: Structure, Function, and Models. NATO ASI Series. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-5640-0_36
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DOI: https://doi.org/10.1007/978-1-4684-5640-0_36
Publisher Name: Springer, Boston, MA
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