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Variability and Randomness of the Instantaneous Firing Rate
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SYSNO ASEP 0543840 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Variability and Randomness of the Instantaneous Firing Rate Author(s) Tomar, Rimjhim (FGU-C) ORCID
Košťál, Lubomír (FGU-C) RID, ORCID, SAIArticle number 620410 Source Title Frontiers in Computational Neuroscience. - : Frontiers Media - ISSN 1662-5188
Roč. 15, Jun 7 (2021)Number of pages 12 s. Language eng - English Country CH - Switzerland Keywords variability ; randomness ; firing rate ; entropy ; rate coding ; neural coding ; temporal coding ; instantaneous firing rate Subject RIV BB - Applied Statistics, Operational Research OECD category Statistics and probability R&D Projects GA20-10251S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support FGU-C - RVO:67985823 UT WOS 000663635200001 EID SCOPUS 85108383814 DOI https://doi.org/10.3389/fncom.2021.620410 Annotation The apparent stochastic nature of neuronal activity significantly affects the reliability of neuronal coding. To quantify the encountered fluctuations, both in neural data and simulations, the notions of variability and randomness of inter-spike intervals have been proposed and studied. In this article we focus on the concept of the instantaneous firing rate, which is also based on the spike timing. We use several classical statistical models of neuronal activity and we study the corresponding probability distributions of the instantaneous firing rate. To characterize the firing rate variability and randomness under different spiking regimes, we use different indices of statistical dispersion. We find that the relationship between the variability of interspike intervals and the instantaneous firing rate is not straightforward in general. Counter-intuitively, an increase in the randomness (based on entropy) of spike times may either decrease or increase the randomness of instantaneous firing rate, in dependence on the neuronal firing model. Finally, we apply our methods to experimental data, establishing that instantaneous rate analysis can indeed provide additional information about the spiking activity. Workplace Institute of Physiology Contact Lucie Trajhanová, lucie.trajhanova@fgu.cas.cz, Tel.: 241 062 400 Year of Publishing 2022 Electronic address https://doi.org/10.3389/fncom.2021.620410
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