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Robustness of Multiplicative Processes in Auditory Spatial Tuning

Peña, José Luis and Konishi, Masakazu (2004) Robustness of Multiplicative Processes in Auditory Spatial Tuning. Journal of Neuroscience, 24 (40). pp. 8907-8910. ISSN 0270-6474. PMCID PMC6729967. doi:10.1523/JNEUROSCI.2924-04.2004.

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Auditory space-specific neurons in the owl's inferior colliculus selectively respond to the direction of sound propagation, which is defined by combinations of interaural time (ITD) and level (ILD) differences. Mathematical analyses show that the amplitude of postsynaptic potentials in these neurons is a product of two components that vary with either ITD or ILD. Temporal correlation in the fine structure of signals between the ears is essential for detection of ITD. By varying the degree of binaural correlation, we could accurately change the amplitude of the ITD component of postsynaptic potentials in the space-specific neurons. Multiplication worked for the entire range of postsynaptic potentials created by manipulation of ITD.

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Additional Information:© 2004 Society for Neuroscience. For the first six months after publication SfN’s license will be exclusive. Beginning six months after publication the Work will be made freely available to the public on SfN’s website to copy, distribute, or display under a Creative Commons Attribution 4.0 International (CC BY 4.0) license ( Received July 19, 2004. Revision received September 1, 2004. Accepted September 3, 2004. This work was supported by a grant from the National Institute of Neurological Disorders. We thank Bjorn Christianson and Sharad Shanbhag for their comments on previous drafts; Partha P. Mitra and Fabrizio Gabianni for their advice in using SVD; and Gilles Laurent, Christof Koch, and Bartlett Mel for reviewing drafts of this manuscript.
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National Institute of Neurological Disorders and Stroke (NINDS)UNSPECIFIED
Subject Keywords:auditory; binaural; sound localization; multiplication; barn owl; interaural correlation
Issue or Number:40
PubMed Central ID:PMC6729967
Record Number:CaltechAUTHORS:20151130-154708164
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Official Citation:Robustness of Multiplicative Processes in Auditory Spatial Tuning José Luis Peña and Masakazu Konishi The Journal of Neuroscience, 6 October 2004, 24(40):8907-8910; doi:10.1523/JNEUROSCI.2924-04.2004
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62473
Deposited By: Ruth Sustaita
Deposited On:01 Dec 2015 17:18
Last Modified:04 Mar 2022 00:53

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