Longitudinal pattern of basilar membrane vibration in the sensitive cochlea

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150 Citations (Scopus)

Abstract

In the normal mammalian ear, sound vibrates the eardrum, causing the tiny bones of the middle ear to vibrate, transferring the vibration to the inner ear fluids. The vibration propagates from the base of the cochlea to its apex along the cochlear partition. As essential as this concept is to the theory of hearing, the waveform of cochlear partition vibration has yet to be measured in vivo. Here I report a "snapshot" (the instantaneous waveform of cochlear partition vibration) measured in the basal turn of the sensitive gerbil cochlea using a scanning laser interferometer. For 16-kHz tones, the phase delay is up to 6π radians over the observed cochlear length (

Original languageEnglish (US)
Pages (from-to)17101-17106
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume99
Issue number26
DOIs
StatePublished - Dec 24 2002

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Basilar Membrane
Cochlea
Vibration
Tympanic Membrane
Gerbillinae
Middle Ear
Inner Ear
Hearing
Ear
Lasers
Bone and Bones

ASJC Scopus subject areas

  • Genetics
  • General

Cite this

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abstract = "In the normal mammalian ear, sound vibrates the eardrum, causing the tiny bones of the middle ear to vibrate, transferring the vibration to the inner ear fluids. The vibration propagates from the base of the cochlea to its apex along the cochlear partition. As essential as this concept is to the theory of hearing, the waveform of cochlear partition vibration has yet to be measured in vivo. Here I report a {"}snapshot{"} (the instantaneous waveform of cochlear partition vibration) measured in the basal turn of the sensitive gerbil cochlea using a scanning laser interferometer. For 16-kHz tones, the phase delay is up to 6π radians over the observed cochlear length (",
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AB - In the normal mammalian ear, sound vibrates the eardrum, causing the tiny bones of the middle ear to vibrate, transferring the vibration to the inner ear fluids. The vibration propagates from the base of the cochlea to its apex along the cochlear partition. As essential as this concept is to the theory of hearing, the waveform of cochlear partition vibration has yet to be measured in vivo. Here I report a "snapshot" (the instantaneous waveform of cochlear partition vibration) measured in the basal turn of the sensitive gerbil cochlea using a scanning laser interferometer. For 16-kHz tones, the phase delay is up to 6π radians over the observed cochlear length (

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