[FieldTrip] headmodel and electrodes alignment

Elene Beitia Loinaz elene.beitia at alumni.mondragon.edu
Fri Jan 18 09:20:14 CET 2019


Thank you Stephen and Julian, I already fixed the problem. It was a problem
between different standards.


Hau idatzi du Stephen Whitmarsh (stephen.whitmarsh at gmail.com)
erabiltzaileak (2019 urt. 16, az. (10:45)):

> Hi Elene,
>
> In the code you do not use ft_electroderealign twice (once manually, then
> automatic). Also, you convert units after realignment.
>
> For the sake of debugging and clarity, I would:
>
>
>    1. - figure out and set the units correctly for you headmodel and
>    electrodes
>    2. - convert headmodel and electrodes to same units
>    3. - plot to check
>    4. - use 'interactive' realignment
>    5. - plot to check
>    6. - use 'headmodel' realignment
>    7. - plot to check
>
>
> Cheers,
> Stephen
>
>
> On Wed, 16 Jan 2019 at 10:35, Elene Beitia Loinaz <
> elene.beitia at alumni.mondragon.edu> wrote:
>
>> Hi Stephen,
>>
>> Thank you for your answer. I already try that, but the result that I
>> obtained is not correct either.
>>
>> Code:
>>
>> cfg=[];
>>
>> cfg.method= 'headshape';
>>
>> cfg.headshape=headmodel.bnd(1); % this is the skin surface
>>
>> elec_realigned =ft_electroderealign(cfg,data1.elec);
>>
>>
>>
>> %Plot the result to see if is correct
>>
>>
>>
>> vol = ft_convert_units(vol,'mm');
>>
>> elec_realigned = ft_convert_units(elec_realigned,'mm')
>>
>>
>>
>> figure
>>
>> ft_plot_sens(elec_realigned, 'style', 'b');
>>
>>
>>
>> hold on
>>
>> ft_plot_vol(vol);
>>
>> [image: Captura de pantalla 2019-01-16 a las 9.59.14.png]
>>
>> Thank you in advance,
>>
>> Elene.
>> _______________________________________________
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>> https://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>> https://doi.org/10.1371/journal.pcbi.1002202
>>
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>
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