Sensitivity of hair-cell voltage to sinusoidal sound pressure at the eardrum

Range ~1,000 mV/Pa
Organism Turtle Trachemys scripta elegans
Reference Bialek W. Physical limits to sensation and perception. Annu Rev Biophys Biophys Chem. 1987 16: 455-78. p.465 3rd paragraphPubMed ID3297091
Primary Source [1] Art JJ, Crawford AC, Fettiplace R, Fuchs PA. Efferent modulation of hair cell tuning in the cochlea of the turtle. J Physiol. 1985 Mar360: 397-421. [42] Crawford AC, Fettiplace R. The frequency selectivity of auditory nerve fibres and hair cells in the cochlea of the turtle. J Physiol. 1980 Sep306: 79-125.PubMed ID3989721, 7463380
Comments p.465 3rd paragraph:"In the turtIe (primary sources) the sensitivity of hair-cell voltage to sinusoidal sound pressure at the eardrum is ~10^3mV/Pa, the broad-band noise level is 1-5mV, and the displacement of the basilar membrane (on which the hair cells sit) per unit pressure is ~85 nm/Pa (ref 43). These data determine an equivalent broad-band displacement noise of 8.5-43×10^-11m." keywords: hearing,sensitivity,threshold,ear
Entered by Uri M
ID 111982