[FieldTrip] using eeglab's ICA data with beamformer

[Tyler Grummett]

Hello fieldtrip,


I am new to the fieltrip toolbox and Ive come from eeglab to do some beamformer and connectivity processing.


Ive used the function eeglab2fieldtrip, with one of the arguments being 'componentanalysis'. I tried using the data in the beamformer tutorial and everything worked fine

until I got to the ft_sourceanalysis script where it used the channel labels and positions from the original non-ICAed data. So the code crashed because the ICA labels

and channels labels didnt match.


I was wondering whether beamformer can be used with ICs from eeglab, and if so, where I am going wrong.


We also want to do functional connectivity as I mentioned, which requires a beamformer that operates in the time domain as opposed to the frequency domain.


However, there arent any tutorials on the Constrained Minimum Variance (LCMV) beamformer (which I think works in the time domain), so I am trying to make do with the one used in the tutorial.


Any help will be greatly appreciated.


Tyler.


*************************

Tyler Grummett ( BBSc, BSc(Hons I))
PhD Candidate
Brain Signals Laboratory
Flinders University
Rm 5A301
Ext 66124
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