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- How can LFP calculations be incorporated in simulation software?
- Can single-compartmental model neurons generate local field potentials at all?
%Modified %%Modified from PRE2015:
Interpretation %Interpretation of extracellular potentials is unclear
\cite{Buzhaki %\cite{Buzhaki et al. 2012}, \cite{Bedard et al. 2006},
\cite{Bedard %\cite{Bedard and Destexhe 2011}, \cite{Bedard and Destexhe 2013},
\cite{Bedard %\cite{Bedard and Destexhe 2014} even in the case
of %of synchronous neuronal epileptiform events the relationship
between %between simultaneously registered extracellular and intracellular
signals %signals is non-trivial \cite{Alvarado-Rojas et al. 2015}. Assuming
an %an homogeneous and isotropic extracellular space (but see
\cite{Ranck %\cite{Ranck and BeMent 1965}), an extracellular potential is
commonly %commonly described by the Poisson equation with macroscopically
averaged %averaged transmembrane currents as distributed sources
\cite{Nicholson %\cite{Nicholson 1973}, \cite{Nicholson and Freeman 1975} or by the
Laplace %Laplace equation with the transmembrane currents distributed along
all %all membrane surfaces \cite{Logothetis 2007}, \cite{Linden et al.
2011}, %2011}, \cite{Schomburg et al. 2012}, \cite{Gold et al. 2006},
\cite{Einevoll %\cite{Einevoll et al. 2013}, \cite{Ibarz et al. 2010}. If neuronal
activity %activity is modeled by multiple compartment neurons, then
calculation %calculation of the local field potential (LFP) with the Poisson
equation %equation is straightforward. However, in most cases biophysically detailed mean-field models also
deals %deals with somatic signals of neuronal activity exclusively, and
the %the question of how to estimate the LFP from these somatic signals
is %is unclear \cite{Chizhov 2014},
\cite{Baladron %\cite{Baladron et al. 2012}.
A %A simple formula linking
intracellular %intracellular parameters of neuronal activity to extracellular
field %field potential has been derived in \cite{Chizhov et al. 2015},
neglecting %neglecting ionic dynamics and glial contributions.