[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/
>
>
> _______________________________________________
> fieldtrip mailing list
> fieldtrip at donders.ru.nl
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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
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