Stochastic Model Explains Role of Excitation and Inhibition in Binaural Sound Localization in Mammals

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F11%3A00186122" target="_blank" >RIV/68407700:21460/11:00186122 - isvavai.cz</a>

Result on the web

<a href="http://www.biomed.cas.cz/physiolres/pdf/60/60_573.pdf" target="_blank" >http://www.biomed.cas.cz/physiolres/pdf/60/60_573.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Stochastic Model Explains Role of Excitation and Inhibition in Binaural Sound Localization in Mammals

Original language description

Interaural time differences, the differences of arrival time of the sound at the two ears, provide a major cue for low-frequency sound localization in the horizontal plane. This is done in the medial superior olive using a stochastic spike timing. The inputs to the circuit are stochastic spike trains with a spike timing distribution described by a beta density. The outputs of the circuit reproduce the empirical firing rates found in experiment in response to the varying ITD. The outputs of the computational model are calculated numerically and these numerical simulations are also supported by analytical calculations. We formulate a simple hypothesis concerning how sound localization works in mammals. In conclusion, there is no array of delay lines as in the Jeffress's model, but instead the inhibitory input is shifted in time as a whole. This is consistent with experimental observations in mammals.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JD - Use of computers, robotics and its application

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physiological Research

ISSN

0862-8408

e-ISSN

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Volume of the periodical

60

Issue of the periodical within the volume

3

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

11

Pages from-to

573-583

UT code for WoS article

000293138600018

EID of the result in the Scopus database

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