Make vol structure (beamformer)

[Robert Oostenveld]

Dear Guilio

You describe that you have a realistic description of the geometry. Depending on whether you want to use EEG or MEG, and depending on what kind of method for computing the volume conduction model you want to use, there are different functions that construct "vol", i.e. the volume  conduction model. 

I just started to work on improving the documentation for head modeling and am also planning on cleaning up and renaming the functions. Here is a short summary corresponding to the current implementation:

for EEG there are
  ft_prepare_bemmodel.m
  ft_prepare_concentricspheres.m

 and for MEG there are
  ft_prepare_localspheres.m
  ft_prepare_singleshell.m

Please look at the help of these functions. If that does not clarify it, please look at http://fieldtrip.fcdonders.nl/tutorial/headmodel (which is work in progress).

best regards,
Robert




On 20 Apr 2010, at 16:09, maglione.antongiulio wrote:

> Hi Users,
> i have realistic head model and i don't see an example as make vol structure.
> i found an example where show as create 3 sphere.
> how to make vol structure to use its in ft_prepare_leadfield function?
> 
> thanks,
> giulio
> 
> 
>  
> 
> -- 
> " Un giorno, passeggiando nella foresta, ho visto una bestia. Quando mi sono avvicinato ho visto che era un uomo. Quando sono arrivato vicino a lui mi sono accorto che era mio fratello" (Proverbio tibetano)
> Vieni a trovarmi a quest'indirizzo:
> 
> angima.blogspot.com oppure
> http://www.facebook.com/antongiulio.maglione?ref=name (Facebook)
> 
> 
> ----------------------------------
> 
> The aim of this list is to facilitate the discussion between users of the FieldTrip toolbox, to share experiences and to discuss new ideas for MEG and EEG analysis.
> 
> http://listserv.surfnet.nl/archives/fieldtrip.html
> 
> http://www.ru.nl/fcdonders/fieldtrip/
> 


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The aim of this list is to facilitate the discussion between users of the FieldTrip  toolbox, to share experiences and to discuss new ideas for MEG and EEG analysis. See also http://listserv.surfnet.nl/archives/fieldtrip.html and http://www.ru.nl/neuroimaging/fieldtrip.
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