JN Watch the video to learn how APS reaches out to developing nations.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
QUICK SEARCH:   [advanced]


     

J Neurophysiol (August 27, 2008). doi:10.1152/jn.90639.2008
This Article
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
100/5/2899    most recent
90639.2008v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Temchin, A. N.
Right arrow Articles by Ruggero, M. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Temchin, A. N.
Right arrow Articles by Ruggero, M. A.
Submitted on June 4, 2008
Revised on August 8, 2008
Accepted on August 24, 2008

Threshold tuning curves of chinchilla auditory-nerve fibers. II. Dependence on spontaneous activity and relation to cochlear nonlinearity

Andrei N. Temchin, Nola C. Rich, and Mario A. Ruggero1*

1 Northwestern University

* To whom correspondence should be addressed. E-mail: mruggero{at}northwestern.edu.

Spontaneous activity and frequency-threshold tuning curves were studied in thousands of auditory-nerve fibers in chinchilla. The frequency distribution of spontaneous-activity rates is strongly bimodal for auditory-nerve fibers with characteristic frequency < 3 kHz but only mildly bimodal for the entire sample. Spontaneous activity rates and thresholds at the characteristic frequency are inversely related. The overall shapes of frequency-threshold curves, including tip-to-tail ratio, do not depend on spontaneous activity but fibers with low rates of spontaneous activity have more sharply-tuned tips than fibers with high spontaneous rates. It is shown here that this dependence of tuning on spontaneous rates is consistent with a previously unnoticed non-monotonic dependence on iso-velocity criterion of the frequency tuning of basilar-membrane vibrations.




This article has been cited by other articles:


Home page
 J. Neurophysiol.Home page
A. N. Temchin, N. C. Rich, and M. A. Ruggero
Threshold Tuning Curves of Chinchilla Auditory-Nerve Fibers. I. Dependence on Characteristic Frequency and Relation to the Magnitudes of Cochlear Vibrations
J Neurophysiol, November 1, 2008; 100(5): 2889 - 2898.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
Visit Other APS Journals Online
Copyright © 2008 by the The American Physiological Society.