Responses of midbrain auditory neurons to two different environmental sounds – a new approach on cross-sound modeling

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21730%2F20%3A00332494" target="_blank" >RIV/68407700:21730/20:00332494 - isvavai.cz</a>

Alternative codes found

RIV/68378041:_____/20:00539954

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0303264719300851" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0303264719300851</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.biosystems.2019.104021" target="_blank" >10.1016/j.biosystems.2019.104021</a>

Result language

angličtina

Original language name

Responses of midbrain auditory neurons to two different environmental sounds – a new approach on cross-sound modeling

Original language description

When modeling auditory responses to environmental sounds, results are satisfactory if both training and testing are restricted to datasets of one type of sound. To predict 'cross-sound' responses (i.e., to predict the response to one type of sound e.g., rat Eating sound, after training with another type of sound e.g., rat Drinking sound), performance is typically poor. Here we implemented a novel approach to improve such cross-sound modeling (single unit datasets were collected at the auditory midbrain of anesthetized rats). The method had two key features: (a) population responses (e.g., average of 32 units) instead of responses of individual units were analyzed; and (b) the long sound segment was first divided into short segments (single sound-bouts), their similarity was then computed over a new metric involving the response (called Stimulus Response Model map or SRM map), and finally similar sound-bouts (regardless of sound type) and their associated responses (peri-stimulus time histograms, PSTHs) were modelled. Specifically, a committee machine model (artificial neural networks with 20 stratified spectral inputs) was trained with datasets from one sound type before predicting PSTH responses to another sound type. Model performance was markedly improved by up to 92%. Results also suggested the involvement of different neural mechanisms in generating the early and late responses to amplitude transients in the broadband environmental sounds. We concluded that it is possible to perform rather satisfactory cross-sound modeling on datasets grouped together based on their similarities in terms of the new metric of SRM map.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Project

<a href="/en/project/GC16-09086J" target="_blank" >GC16-09086J: Processing of complex sounds in the central auditory system under normal and pathological conditions</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

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

Name of the periodical

Biosystems

ISSN

0303-2647

e-ISSN

1872-8324

Volume of the periodical

187

Issue of the periodical within the volume

January

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

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UT code for WoS article

000508746500007

EID of the result in the Scopus database

2-s2.0-85073003734