Mechanical Correlates of Noise Trauma in the Mammalian Cochlea
Recent observations of the vibration of the cochlear partition in the cat , the guinea pig [2,3] and the chinchilla  have supported and extended the work of Rhode  in the squirrel monkey. These studies have shown that in the normal animal many aspects of the electrical responses from inner hair cells (and therefore the primary afferents that innervate them) can be explained in terms of the vibration of the cochlear partition. Futhermore, the changes in vibration observed following surgical trauma and loud sound  indicate that at least some portion of noise-induced hearing loss (NIHL) can be attributed to disruption of this vibration. The following paper attempts to summarize what is known of the vibration of the cochlear partition and how this information relates to NIHL.
KeywordsHair Cell Sound Pressure Level Sound Level Outer Hair Cell Basilar Membrane
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