simulation of a dataset with multiple dipoles

[Litvak Vladimir]

Hi,

You may find the free dipole simulator written by Patrick Berg helpful. It
can be downloaded from:

ftp://ftp.besa.de/free_tools/DipoleSimulator-2004-11-19-Install.exe

You can simulate there ERPs and also raw data with any dipole
configuration you like and then convert it to format that Fieldtrip can
look at.

Best,

Vladimir

On Thu, 28 Jul 2005, Florian Ph.S Fischmeister wrote:

> Dear Experts,
>
> I am trying to simulate an EEG dataset containing multiple dipoles. I do
> understand, that I can have a single dipole with a different moment and
> time course per trial using cell-arrays. But how can I obtain multiple
> dipoles? Is it correct to simulate one dataset per dipol and than sum
> the different datasets?
>
> Currently I am using a 4 spherical shell model with
>  cfg.vol.r = [71 72 79 85];
>  cfg.vol.c = [0.3300 1 0.0042 0.3300];
>  cfg.vol.o = [0 0 0];
> taken from EEGLAB.
>
> What are the correct steps to obtain a BEM forward head-model based on an MRI
> for an individual electrode setting for dipolesimulation.
>
> Finaly, I want to check the simulation using the dipolefitting routine
> included in fieldtrip. Could you please provide some information on how
> the appropriate cfg should look like.
>
>
> Thanks in advance,
>
> Florian
>
> --
> Florian Ph.S Fischmeister 	eMail: Florian.Fischmeister at univie.ac.at
> Brain Research Laboratory	University of Vienna
> Faculty of Psychology		Liebiggasse 5
> Tel: +43-(0)1-4277-478-37	A-1010 Vienna, Austria
> Fax: +43-(0)1-4277-479-39       AT43:+43-(0)59966-4-47837
>