Volume conduction models for EEG
r.oostenveld at FCDONDERS.RU.NL
Mon Apr 24 21:59:33 CEST 2006
On 24 Apr 2006, at 16:55, Juan Civeira wrote:
> I am making my master thesis about coherent sources using data from
> I have done the tutorial of beamforming and I have done several
> with my own data and the results are quite good but I know that
> they can be
You can use a standard realistic volume conductor model in Fieldtrip.
Such a model is not yet available from the fieldtrip homepage or ftp
server, but recently I did construct a standard BEM model for
Fieldtrip bvased on the MNI/SPM brain. It is included in the beta
version of the DIPFIT2 plugin for EEGLAB (the dipfit plugin uses a
subset of Fieldtrip). See http://www.sccn.ucsd.edu/eeglab/
> I have used the multiple spheres model and now I want to use a
> model but I don´t have the software. I have looked for it on the
> but I only found commercial software.
I can think of Curry, EMSE, BESA, ASA as commercial software. You can
try to get a try-out copy of one of those software products.
> Does anyone know any freeware to create a realistic model for EEG?
> I have
> the data and I also have a MRI and I want to use them all for
> displaying the
Brainstorm from Mosher and colleagues is open source and includes a
complete implementation of BEM for EEG. See the external links page
on the fieldtrip site.
> Moreover, Fieldtrip supports all forward models supported by the
> meg-calc toolbox. Is there any way of making one of those models
> using the commercial software?
No, the meg-calc toolbox is commercial, and relies on additional
software from Neuromag.
Robert Oostenveld, PhD
F.C. Donders Centre for Cognitive Neuroimaging
Radboud University Nijmegen
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