[FieldTrip] Using loreta2fieldtrip (Beom Jun Min)

[RICHARDS, JOHN]

Beom Jun Min:

I am not sure of the exact answer, but….

Many of FT procedures require a pos (position) matrix, which is the s/c/a x/y/z positions of each dipole, and some other position information (e.g., mm; name of space; ft volume realign).  This may not be necessary for a specific proc (ft_sourcegrandaverage) but is for other (ft_sourceinterpolate).

pow can be calculated from mom, either with 3-dipole-moment or single-dipole-moment.

Alternatively.  I have been using the Nutmeg sLORETA procedure from the FT structures and data.  If you have all your data in the FT format (head model, electrodes, lf), there is a routine that “almost” works to translate your FT LF to Nutmeg, and the sLORETA and dSPM routines from Nutmeg seem to work well.  One advantage of FT/Nutmeg over LORETA or sLORETA packages is the FT is oriented to single participant head models.

John


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John E. Richards Carolina Distinguished Professor
Department of Psychology
University of South Carolina
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