[FieldTrip] NaN Values in grid.liedfield

[kousik sarathy]

Hey Keyvan,

When leadfield structure has NaN it generally means the grid points lie
outside the brain.
Please have a look at this:
http://fieldtrip.fcdonders.nl/tutorial/headmodel_eeg

--
Regards,
Kousik Sarathy, S



On Wed, May 28, 2014 at 11:47 PM, Keyvan Mahjoory <mahjoory86 at gmail.com>wrote:

> Dear all,
>
> I want to do EEG source reconstruction. The EEG cap  is t 10-20 standard,
> with 64 channels, but the MRI and electrode positions of  subjects are not
> available. I used Fieldtrip templates for my work. my scripts are as below:
>
> cfg                 = [];
> cfg.elec=ft_read_sens('standard_1020.elc');
> cfg.vol             = load('standard_bem.mat');
> cfg.channel         = epo.clab;
> [grid] = ft_prepare_leadfield(cfg);
>
> But the output for grid.liedfield includes NAN values.
> I hope someone can give me comments on this matter.
>
> Best,
> Keyvan
>
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