Abstract
The effects of broadband noise (BBN) on the tone-evoked dc receptor potential from inner hair cells of guinea pigs were measured. The effects of the noise were: suppression of the receptor potential, no net change, or greater depolarization relative to the tone alone, evoked receptor potential. The effects appear to be consistent with a two-tone suppression hypothesis. The time course of the suppression effect is immediate and constant in time. This observation suggests no obvious involvement of a local feedback loop in outer hair cells or one depending on the efferent nerves. Inner hair cell “sensitivity” is a variable in the magnitude of the suppression. Comparison of masked, tone-evoked dc receptor potential intensity functions to responses from auditory-nerve fibers (taken from the literature for experiments using a similar paradigm) differentiates the phenomena of suppression and adaptation in the auditory periphery.
Original language | English (US) |
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Pages (from-to) | 1007-1012 |
Number of pages | 6 |
Journal | Journal of the Acoustical Society of America |
Volume | 86 |
Issue number | 3 |
DOIs | |
State | Published - 1989 |
Externally published | Yes |
ASJC Scopus subject areas
- Arts and Humanities (miscellaneous)
- Acoustics and Ultrasonics