| Original Articles |
|
|
|
|
New Evidence of Active Tuning in Cochlea |
| ZHAO Xiang-Hui;LONG Zhang-Cai |
| Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 |
|
| Cite this article: |
|
ZHAO Xiang-Hui, LONG Zhang-Cai 2007 Chin. Phys. Lett. 24 3183-3186 |
|
|
|
Abstract The wonderful performance of hearing systems is mainly attributed to the
tuning filtering of basilar membrane (BM). Although theory of the cochlear mechanism has been greatly developed since the 1970s and the amplification or sensitivity of the cochlea has been concluded due to the out hair cells, the mechanics underlying the sharp-tuning or frequency selectivity of cochlea remains a puzzle. We use the cochlear translation function derived from the data of an experiment of the BM in vivo to calculate basilar responses to tone bursts, and find that there are resonant peaks with the characteristic frequency at the corresponding place in the initial and terminal part of the responses. However, when the translation function is shallower, there will be no resonant peaks in the responses. The result indicates that the sharp tuning is due to existence of the active resonant tuning mechanism.
|
| Keywords:
43.64.+r
87.19.Bb
87.19.Dd
|
|
|
Received: 07 March 2007
Published: 23 October 2007
|
|
|
|
|
|
|
|
[1] Robles L and Ruggero M A 2001 Physiol. Rev. 81 1305
[2] Rhode W S 1971 J. Acoust. Soc. Am. 49 1218
[3] Rhode W S 1980 J. Acoust. Soc. Am. 67 1696
[4] Luis Robles et al 1986 J. Acoust. Soc. Am. 80 1364
[5] Sellick P M et al 1982 J. Acoust. Soc. Am. 72 131
[6] Nuttall A L and Dolan D F 1996 J. Acoust. Soc. Am. 99 1556
[7] Naidu R C and Mountain D C 1998 Hearing Res. 124 124
[8] von B\'ek\'esy G 1963 J. Acoust. Soc. Am. 35 588
[9] Rhode W S 1978 J. Acoust. Soc. Am. 64 158
[10] Khanna S M and Leonard D G B 1982 Science 215 305
[11] Robles L, Ruggero M A and Rich N C 1986 J. Acoust. Soc. Am. 80 1364
[12] Cooper N P and Rhode W S 1995 Hearing Res. 82 225
[13] Ruggero M A, Narayan S S, Temchin A N and Recio A 2000 Proc.Natl. Acad. Sci. USA 97 11744
[14] Ruggero M A 1992 Curr. Opin. Neurobiol. 2 449
[15] Narayan S S, Temchin A N, Recio A 1998 Science 2821882
[16] Patuzzi R and Robertson D 1988 Physiol. Rev. 68 1009
[17] Ruggero M A and Rich N C 1991 J. Neurosci. 11 1057
[18] Liberman M C, Gao J et al 2002 Nature 419 300
[19] Martin P, Bozovic D, Choe Y, and Hudspeth A J 2003 J.Neurosci. 23 4533
[20] Fettiplace R and Hackney C M 2006 Nature 7 19
[21] Egu\'\i luz V M, Ospeck M, Choe Y, Hudspeth A J and MagnascoM A 2000 Phys. Rev. Lett. 84 5232
[22] Duke T and J\"ulicher F 2003 Phys. Rev. Lett. 90 158101
[23] Magnasco M O 2003 Phys. Rev. Lett. 90 058101
[24] van der Heijden M and Joris P X 2003 J. Neurosci. 239194
[25] Rhode W S and Recio A 2000 J. Acoust. Soc. Am. 1073317
[26] Rhode W S 1971 J. Acoust. Soc. Am. 49 1218
[27] Ruggero M A, Rich N C, Recio A, Narayan S S, and Robles L1997 J. Acoust. Soc. Am. 101 2151
[28] Russell I J and Nilsen K E 1997 Proc. Natl. Acad. Sci.USA 94 2660
[29] Richter C-P, Evans B N, Edge R, and Dallos P 1998 J.Neurophysiol. 79 2255
[30] Glasberg B R and Moore B C J 1990 Hearing Res. 47 103
[31] Geisler C D and Rhode W S 1982 J. Acoust. Soc. Am. 711201
[32] Martin P and Hudspeth A J 1999 Natl. Acad. Sci. USA 9614306
[33] Fettiplace R and Fuchs P A 1999 Annu. Rev. Physiol. 61809 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
