Primary auditory neurons: Nonlinear responses altered without changes in sharp tuning

Abstract
Two-tone suppression and distortion product responses in mammalian [guinea pigs] auditory neurons were altered by exposure to short, high intensity tones in the frequency region of the suppressing or primary tones. These changes occurred without significant alteration of the single neurons'' tuning curves. Two-tone suppression and distortion product responses apparently are a function of the integrity of cochlear regions remote from the final transduction site.

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