Dipoli issues

Paul Czienskowski paul_c at GMX.DE
Wed Jul 21 19:54:53 CEST 2010


Hi Vladimir,

I indeed took notice of the fact of another BEM toolbox being available,
but the prepare_bemmodel function states, that bemcp is only capable of
compute BEM models with 3 compartments which is of no use to me. Thank
you anyway :)

Cheers,
Paul

On 21.07.2010 13:36, Vladimir Litvak wrote:
> Dear Paul,
>
> Note that there is also the bemcp toolbox distributed with Fieldtrip
> that should be easy to compile on Linux. I compared it with OpenMEEG
> on SPM canonical mesh and there are only differences for a small
> number of vertices close to the boundary. According to Christophe
> Phillips who wrote the toolbox as long as you stay more than one mesh
> edge length away from the inner skull boundary there should be no
> problem and it runs much faster than OpenMEEG (don't know about
> dipoli).
>
> Best,
>
> Vladimir
>
> On Wed, Jul 21, 2010 at 8:28 AM, Paul Czienskowski<paul_c at gmx.de>  wrote:
>
>> Dear all,
>>
>> I hope that somebody  is able to help me. I'm trying to generate a BEM model
>> following the example script in
>> http://fieldtrip.fcdonders.nl/example/create_bem_headmodel_for_eeg for my
>> diploma thesis, but every time I'm running dipoli with more than 3
>> compartments, the Program complains about double vertices on the innermost
>> mesh. I first suspected a weird brain geometry to be the culprit, but I now
>> tried to build the model with a simple sphere as the innermost compartment
>> and the error remains, so this shouldn't be due to a weird geometry because
>> there are few geometries as inoffensive as spheres. Has anybody an Idea or -
>> alternatively - run OpenMEEG on an Ubuntu 9.04/64 Bit Intel system and could
>> give me some hint how to build and run it?
>>
>> Thanks in advance,
>> Paul
>>
>> --
>> Paul Czienskowski
>> Björnsonstr. 25
>> 12163 Berlin
>>
>> Tel.: (+49)(0)30/221609359
>> Handy: (+49)(0)1788378772
>>
>> ----------------------------------
>> 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.
>>
>>
>>
> ----------------------------------
> 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.
>


--
Paul Czienskowski
Björnsonstr. 25
12163 Berlin

Tel.: (+49)(0)30/221609359
Handy: (+49)(0)1788378772

----------------------------------
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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