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  • Title: Effects of high-frequency sound on electrochemical potential using the single-barrel method in guinea pigs.
    Author: Matsui T, Sugisawa T, Ishida A, Nemoto K, Yamamura K.
    Journal: ORL J Otorhinolaryngol Relat Spec; 1993; 55(2):84-8. PubMed ID: 8446392.
    Abstract:
    There are only a few studies investigating the effects of ultrasound on hearing. This paper reports on an experimental investigation on the effect of the long-time exposure to a moderate sound pressure level, high-frequency sound of 16 kHz on the guinea pig inner ear using electrophysiological methods. A decrease of the absolute value of negative potential was observed in the endocochlear potential (EP). The effects of high-frequency sound on EP and electrochemical potential could be explained by a change in the K+ permeability of hair cells.
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