Abstract：
:Certain characteristics of the extracellular cochlear microphonic (CM) recorded by intracochlear electrodes change in a bimodal manner as a function of prior acoustic exposure, intensity of stimulation, or stimulus frequency. In the present study, it is shown that biasing the basilar membrane position toward scala tympani serves to enhance the CM amplitude when the cochlea is unfatigued, when low-intensity stimuli are used, or when frequencies below the best frequency of a differential electrode pair are used. Conversely, after acoustic fatigue, or during high-intensity or high-frequency stimulation, the microphonic potential is enhanced by a movement of the basilar membrane toward the scala vestibuli. The two populations of hair cells, whose responses are enhanced and diminished on opposing positions of the basilar membrane, are probably outer and inner hair cells.
journal_name
Hear Resjournal_title
Hearing researchauthors
Pierson M,Møller Adoi
10.1016/0378-5955(80)90036-2subject
Has Abstractpub_date
1980-03-01 00:00:00pages
151-62issue
2eissn
0378-5955issn
1878-5891pii
0378-5955(80)90036-2journal_volume
2pub_type
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