[FieldTrip] Beamforming in FieldTrip and Brainstorm

[Ioanna Zioga]

Hi All,


I'm Ioanna and I'm a PhD student in Queen Mary University of London, doing EEG research on music learning and creativity [:slight_smile:]


My question is on using Brainstorm and FieldTrip interchangeably to do beamforming on EEG data recorded by a 64-channel EGI system.

I haven't found an option to compute the cross-spectral density matrix for the beamforming in Brainstorm. On the other hand, with Brainstorm I could quite easily create a head model for the 64-channel EGI system my data were recorded with.


Therefore, I was wondering if I could:

  1.  Calculate the cross-spectral density in Fieldtrip (ft_freqanalysis)
  2.  Create the head model in Brainstorm
  3.  Run the source analysis in Fieldtrip (ft_sourceanalysis) using the head model from Brainstorm

Q1: How can I use the head model (as computed in Brainstorm) in FieldTrip to run the ft_sourceanalysis function? What is the format that the head model structure should have?

Q2: Does anyone have a FieldTrip head model for a 64-channel EGI system?


Any help would be very much appreciated!


Thanks so much in advance,
Ioanna

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https://doi.org/10.1371/journal.pcbi.1002202