Effects of high-frequency sound on electrochemical potential using the single-barrel method in guinea pigs.
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.
Matsui
T
T
Department of Hygiene, Asahikawa Medical College, Hokkaido, Japan.
Sugisawa
T
T
Ishida
A
A
Nemoto
K
K
Yamamura
K
K
D000161:Acoustic Stimulation; D000818:Animals; D003051:Cochlea / Q000378:metabolism / Q000502:physiology*; D003053:Cochlear Duct / Q000378:metabolism; D003055:Cochlear Microphonic Potentials / Q000502:physiology*; D004563:Electrochemistry; D006168:Guinea Pigs; D000860:Hypoxia / Q000378:metabolism / Q000503:physiopathology; D008839:Microelectrodes; D009622:Noise / Q000009:adverse effects; D011188:Potassium / Q000378:metabolism; D011312:Pressure; D011930:Reaction Time; D013997:Time Factors; D014465:Ultrasonics / Q000009:adverse effects
D011188:Potassium