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Neuronal Shot Noise and Brownian 1/f(2) Behavior in the Local Field Potential

We demonstrate that human electrophysiological recordings of the local field potential (LFP) from intracranial electrodes, acquired from a variety of cerebral regions, show a ubiquitous 1/f(2) scaling within the power spectrum. We develop a quantitative model that treats the generation of these fiel...

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Detalles Bibliográficos
Autores principales: Milstein, Joshua, Mormann, Florian, Fried, Itzhak, Koch, Christof
Formato: Texto
Lenguaje:English
Publicado: Public Library of Science 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2629847/
https://www.ncbi.nlm.nih.gov/pubmed/19190760
http://dx.doi.org/10.1371/journal.pone.0004338
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author Milstein, Joshua
Mormann, Florian
Fried, Itzhak
Koch, Christof
author_facet Milstein, Joshua
Mormann, Florian
Fried, Itzhak
Koch, Christof
author_sort Milstein, Joshua
collection PubMed
description We demonstrate that human electrophysiological recordings of the local field potential (LFP) from intracranial electrodes, acquired from a variety of cerebral regions, show a ubiquitous 1/f(2) scaling within the power spectrum. We develop a quantitative model that treats the generation of these fields in an analogous way to that of electronic shot noise, and use this model to specifically address the cause of this 1/f(2) Brownian noise. The model gives way to two analytically tractable solutions, both displaying Brownian noise: 1) uncorrelated cells that display sharp initial activity, whose extracellular fields slowly decay in time and 2) rapidly firing, temporally correlated cells that generate UP-DOWN states.
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spelling pubmed-26298472009-02-03 Neuronal Shot Noise and Brownian 1/f(2) Behavior in the Local Field Potential Milstein, Joshua Mormann, Florian Fried, Itzhak Koch, Christof PLoS One Research Article We demonstrate that human electrophysiological recordings of the local field potential (LFP) from intracranial electrodes, acquired from a variety of cerebral regions, show a ubiquitous 1/f(2) scaling within the power spectrum. We develop a quantitative model that treats the generation of these fields in an analogous way to that of electronic shot noise, and use this model to specifically address the cause of this 1/f(2) Brownian noise. The model gives way to two analytically tractable solutions, both displaying Brownian noise: 1) uncorrelated cells that display sharp initial activity, whose extracellular fields slowly decay in time and 2) rapidly firing, temporally correlated cells that generate UP-DOWN states. Public Library of Science 2009-02-03 /pmc/articles/PMC2629847/ /pubmed/19190760 http://dx.doi.org/10.1371/journal.pone.0004338 Text en Milstein et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Milstein, Joshua
Mormann, Florian
Fried, Itzhak
Koch, Christof
Neuronal Shot Noise and Brownian 1/f(2) Behavior in the Local Field Potential
title Neuronal Shot Noise and Brownian 1/f(2) Behavior in the Local Field Potential
title_full Neuronal Shot Noise and Brownian 1/f(2) Behavior in the Local Field Potential
title_fullStr Neuronal Shot Noise and Brownian 1/f(2) Behavior in the Local Field Potential
title_full_unstemmed Neuronal Shot Noise and Brownian 1/f(2) Behavior in the Local Field Potential
title_short Neuronal Shot Noise and Brownian 1/f(2) Behavior in the Local Field Potential
title_sort neuronal shot noise and brownian 1/f(2) behavior in the local field potential
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2629847/
https://www.ncbi.nlm.nih.gov/pubmed/19190760
http://dx.doi.org/10.1371/journal.pone.0004338
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