Changes in Stimulus Frequency Otoacoustic Emissions Produced by Two-Tone Suppression and Efferent Stimulation in Cats
Efferent activity and two-tone suppression might affect the cochlear amplifier at different sites but produce similar effects. Their effects on stimulus-frequency otoacoustic emissions (SFEs) were compared in cats by measuring the vector change in ear-canal sound pressure. The results indicate that contributions to the SFE originate along a large fraction of the length of the cochlea, and that SFEs may provide a ‘window’ into the action of the cochlear amplifier.
KeywordsBasilar Membrane Probe Frequency Efferent Activity Probe Tone Efferent Effect
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