Effect of Visual Selective Attention on Otoacoustic Emissions

  • J.-L. Puel
  • G. Rebillard
  • P. Bonfils
  • R. Pujol
Part of the NATO ASI Series book series (NSSA)


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).


Selective Attention Outer Hair Cell Visual Selective Attention Selective Attention Task Efferent Innervation 
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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • J.-L. Puel
    • 1
  • G. Rebillard
    • 1
  • P. Bonfils
    • 1
  • R. Pujol
    • 1
  1. 1.INSERM — U. 254, Laboratoire de Neurobiologie de l’AuditionHôpital St. CharlesMontpellier CedexFrance

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