[FieldTrip] ICA and plotting

Jason Chan chan at med.uni-frankfurt.de
Wed Oct 26 16:38:59 CEST 2011


Hi Everyone,

 

I am currently using Fieldtrip version 20111009.  

 

I am trying to use ICA to reject EOG artifacts.  I ran a correlation
between my EOG electrodes and MEG components to find the components that
should be rejected.  This variable I called "toreject", then used the
following function: 

 

cfg = [];

cfg.component = toreject;

data_reject = ft_rejectcomponent(cfg, comp);

 

When I try to plot my data using ft_topoplotER, the brain activity looks
'spotty'.  However, when I add the cfg.component back into the cfg structure
the activity looks correct.  I have also noticed that adding this
cfg.component will change the plots after I use MEGplanar and CombinePlanar.
What am I doing wrong?

 

Thank you in advance

Jason

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