[FieldTrip] is beamforming result correct?
Ion Lavado
lavado at gmail.com
Thu Mar 22 17:13:34 CET 2012
I think the result i got doing the beamforming source reconstruction is not
good as there is lot of activation at the bottom where the cerebellum is.
Can anyone confirm me it is incorrect? Possible mistake?
This is the code i used for the headmodel:
mri = ft_read_mri('/home/ilavado/ilavado/mutiT1/T1_02.mgz');
cfg = [];
cfg.interactive = 'yes';
cfg.coordsys = 'neuromag';
mri_real = ft_volumerealign(cfg,mri);
[segmentedmri] = ft_volumesegment(cfg, mri_real)
cfg = [];
cfg.sourceunits='cm';
cfg.coordsys = 'neuromag';
vol02 = ft_prepare_singleshell(cfg, segmentedmri);
ft_plot_vol(vol02);
mri_real = rmfield(mri_real, 'pnt');
sourceDiff = source_post;
sourceDiff.avg.pow = (source_post.avg.pow - source_pre.avg.pow) ./
source_pre.avg.pow;
cfg = []
cfg.downsample = 2;
sourceDiffInt = ft_sourceinterpolate(cfg, sourceDiff , mri_real);
cfg = [];
cfg.coordsys = 'ctf';
cfg.nonlinear = 'no';
sourceDiffIntNorm = ft_volumenormalise(cfg, sourceDiffInt);
Thank you very much.
Best,
Ion
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20120322/29705250/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: beam_result.jpg
Type: image/jpeg
Size: 127615 bytes
Desc: not available
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20120322/29705250/attachment-0001.jpg>
More information about the fieldtrip
mailing list