co-ordinate

R. Sreenivasan rajamoni at CCS.FAU.EDU
Thu Nov 18 00:00:39 CET 2004


Hi Robert,

Is there any function in Fieldtrip to translate the Freesurfer-RAS or
Talairach co-ordinate system to the system that Fieldtrip uses? (e.g. giving
the dipole position - cfg.grid.pos = [x y z] for source analysis)

The other question is related to extracting source single-trial data.

Earlier You suggested that the source signal could be extracted by the
following way: ([u,s,v]=svd(dipole.moment)) and  s*v produces 3 components
of source.  Instead can we compute from the dipole (3D) moment by
sqrt(x^2+y^2+z^2) for each trial?

Thank you,

Best regards, Sreenivasan



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