@article {57974,
	title = {Traveling Waves on the Organ of Corti of the Chinchilla Cochlea: Spatial Trajectories of Inner Hair Cell Depolarization Inferred from Responses of Auditory-Nerve Fibers},
	year = {2012},
	abstract = {<p>Spatial magnitude and phase profiles for inner hair cell depolarization throughout the chinchilla cochlea were inferred from responses of auditory-nerve fibers to threshold- and moderate-level tones and tone complexes. Firing-rate profiles for frequencies \&le; 2 kHz are bimodal, with the major peak at the characteristic place and a secondary peak at 3\&ndash;5 mm from the extreme base. Response- phase trajectories are synchronous with peak outward stapes displacement at the extreme cochlear base and accumulate 1.5-period lags at the characteristic places. High-frequency phase trajectories are very similar to the trajectories of basilar-membrane peak velocity toward scala tympani. Low- frequency phase trajectories undergo a polarity flip in a region, 6.5\&ndash;9 mm from the cochlear base, where traveling-wave phase velocity attains a local minimum and a local maximum and where the onset latencies of near-threshold impulse responses computed from responses to near-threshold white noise exhibit a local minimum. That region is the same where frequency-threshold tuning curves of auditory-nerve fibers undergo a shape transition. Since depolarization of inner hair cells presumably indicates the mechanical stimulus to their stereocilia, the present results suggest that distinct low-frequency forward waves of organ of Corti vibration are launched simultaneously at the extreme base of the cochlea and at the 6.5\&ndash;9 mm transition region, from where antiphasic reflections arise.</p>
},
	doi = {10.1523/JNEUROSCI.1138-12.2012},
	url = {http://www.jneurosci.org/cgi/doi/10.1523/JNEUROSCI.1138-12.2012},
	author = {Temchin, A. N. and Recio-Spinoso, A. and Cai, H. and Ruggero, M. A.}
}
