Tectorial Membrane Traveling Waves Underlie Sharp Auditory Tuning in Humans

Our ability to understand speech requires neural tuning with high frequency resolution, but the peripheral mechanisms underlying sharp tuning in humans remain unclear. Sharp tuning in genetically modified mice has been attributed to decreases in spread of excitation of tectorial membrane traveling w...

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Bibliographic Details
Main Authors: Nakajima, Hideko H., Farrahi, Shirin, Ghaffari, Roozbeh, Sellon, Jonathan Blake, Freeman, Dennis M.
Other Authors: Harvard University--MIT Division of Health Sciences and Technology
Format: Article
Language:en_US
Published: Elsevier 2017
Online Access:http://hdl.handle.net/1721.1/111590
https://orcid.org/0000-0003-3369-5067
https://orcid.org/0000-0003-0622-1333
https://orcid.org/0000-0001-6309-0910
Description
Summary:Our ability to understand speech requires neural tuning with high frequency resolution, but the peripheral mechanisms underlying sharp tuning in humans remain unclear. Sharp tuning in genetically modified mice has been attributed to decreases in spread of excitation of tectorial membrane traveling waves. Here we show that the spread of excitation of tectorial membrane waves is similar in humans and mice, although the mechanical excitation spans fewer frequencies in humans—suggesting a possible mechanism for sharper tuning.