[FieldTrip] covariance computation from ft_timelockanalysis

Luke Bloy luke.bloy at gmail.com
Wed Apr 16 21:29:24 CEST 2014


Hi All,

I'm interested in using lcmv to do a common mode differential beamformer.
My understanding, please correct me if I'm incorrect, is that the best way
forward would be to
1) compute a covariance matrix from a time window combining both active and
control windows.
2) use this combined covariance to make a common mode lcmv beamformer
3) apply this to both active and control windows separately
4) combine into some sort of psuedo T or NAI.

does this sound correct?

If so the main thing I'm unclear on is how to compute the covariance for 2
distinct time intervals? is this possible?

Thanks,
Luke
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20140416/456461a7/attachment-0001.html>


More information about the fieldtrip mailing list