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  Sheet conductor model of brain slices for stimulation and recording with planar electronic contacts

Fromherz, P. (2002). Sheet conductor model of brain slices for stimulation and recording with planar electronic contacts. European Biophysics Journal with Biophysics Letters, 31(3), 228-231.

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Genre: Journal Article
Alternative Title : Eur. Biophys. J. Biophys. Lett.

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 Creators:
Fromherz, P.1, Author              
Affiliations:
1Fromherz, Peter / Membrane and Neurophysics, Max Planck Institute of Biochemistry, Max Planck Society, ou_1565146              

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Free keywords: brain slice; field potentials; current-source density; capacitive stimulation; multielectrode array
 Abstract: Current and voltage in a brain slice are considered, taking into account the boundary conditions at the surface to an electrolyte bath and at the substrate of an electron conductor. A sheet conductor model is introduced with ohmic leak conductance to the bath and capacitive coupling to the substrate. It assigns a current-source density of neuronal activity to extracellular field potentials recorded by planar contacts, and it relates the current of planar capacitive contacts to the field potential that elicits neuronal activity. Two examples are analytically solved: the recording across a layered brain slice and the stimulation by a circular electrode. The study forms the basis for neurophysical experiments with brain slices or retinae on microelectronic chips.

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Language(s): eng - English
 Dates: 2002-06
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 41632
ISI: 000176827900008
 Degree: -

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Title: European Biophysics Journal with Biophysics Letters
  Alternative Title : Eur. Biophys. J. Biophys. Lett.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 31 (3) Sequence Number: - Start / End Page: 228 - 231 Identifier: ISSN: 0175-7571