[FieldTrip] plotting interpolated sources with ft_sourceplot
"Jörn M. Horschig"
jm.horschig at donders.ru.nl
Mon Mar 31 09:00:43 CEST 2014
Hi Tyler,
what you are describing sounds to me like the center bias of the
beamformer. Did you contrast the activity with anything, or did you
normalize your leadfield?
Check this out:
http://fieldtrip.fcdonders.nl/tutorial/beamformer#source_analysiswithout_contrasting_condition
Best,
Jörn
On 3/31/2014 5:46 AM, Tyler Grummett wrote:
> I have been trying to plot my interpolated source data using the code:
>
> % interpolate sources
> mri = ft_read_mri('Subject01.mri');
> mri = ft_volumereslice([], mri);
> cfg = [];
> cfg.downsample = 2;
> cfg.parameter = 'avg.pow';
> sourceInt = ft_sourceinterpolate( cfg, source, mri);
> sourceInt = rmfield( sourceInt,'time'); % The avg.pow
> parameter
> % does not vary over time, therefore the time dimension
> is not needed.
>
> % Plot interpolated data
> cfg = []; %#ok<UNRCH>
> cfg.method = 'ortho'; % spline
> cfg.funparameter = 'avg.pow';
> ft_sourceplot( cfg, sourceInt);
>
> However the figure that comes up just had orange squares in the subplots.
>
> I dont know where Ive gone wrong.
>
>
> Tyler
>
>
> *************************
>
> /Tyler Grummett ( BBSc, BSc(Hons I))/
> /PhD Candidate/
> /Brain Signals Laboratory/
> /Flinders University/
> /Rm 5A301/
> /Ext 66124/
>
>
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--
Jörn M. Horschig
PhD Student
Donders Institute for Brain, Cognition and Behaviour
Centre for Cognitive Neuroimaging
Radboud University Nijmegen
Neuronal Oscillations Group
FieldTrip Development Team
P.O. Box 9101
NL-6500 HB Nijmegen
The Netherlands
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