Neuronal shot noise and Brownian 1/f2 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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Autores principales:	Joshua Milstein, Florian Mormann, Itzhak Fried, Christof Koch
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2009
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/14d9bc64faea4d6fb15977bef4594712
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spelling	oai:doaj.org-article:14d9bc64faea4d6fb15977bef45947122021-11-25T06:17:31ZNeuronal shot noise and Brownian 1/f2 behavior in the local field potential.1932-620310.1371/journal.pone.0004338https://doaj.org/article/14d9bc64faea4d6fb15977bef45947122009-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19190760/?tool=EBIhttps://doaj.org/toc/1932-6203We 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.Joshua MilsteinFlorian MormannItzhak FriedChristof KochPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 4, Iss 2, p e4338 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Joshua Milstein Florian Mormann Itzhak Fried Christof Koch Neuronal shot noise and Brownian 1/f2 behavior in the local field potential.
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.
format	article
author	Joshua Milstein Florian Mormann Itzhak Fried Christof Koch
author_facet	Joshua Milstein Florian Mormann Itzhak Fried Christof Koch
author_sort	Joshua Milstein
title	Neuronal shot noise and Brownian 1/f2 behavior in the local field potential.
title_short	Neuronal shot noise and Brownian 1/f2 behavior in the local field potential.
title_full	Neuronal shot noise and Brownian 1/f2 behavior in the local field potential.
title_fullStr	Neuronal shot noise and Brownian 1/f2 behavior in the local field potential.
title_full_unstemmed	Neuronal shot noise and Brownian 1/f2 behavior in the local field potential.
title_sort	neuronal shot noise and brownian 1/f2 behavior in the local field potential.
publisher	Public Library of Science (PLoS)
publishDate	2009
url	https://doaj.org/article/14d9bc64faea4d6fb15977bef4594712
work_keys_str_mv	AT joshuamilstein neuronalshotnoiseandbrownian1f2behaviorinthelocalfieldpotential AT florianmormann neuronalshotnoiseandbrownian1f2behaviorinthelocalfieldpotential AT itzhakfried neuronalshotnoiseandbrownian1f2behaviorinthelocalfieldpotential AT christofkoch neuronalshotnoiseandbrownian1f2behaviorinthelocalfieldpotential
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Neuronal shot noise and Brownian 1/f2 behavior in the local field potential.

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