Hi all,
I'm setting up a small study where I want to compare a subject to some
matched controls. I've been following the Group analysis tutorial and
I've run make_average_subject on my controls. Now, I'd like to check my
data and view averaged curvature and thickness measurements.
When I try
Hi,
I had a question regarding the total volumes of aseg labels listed in
aseg.stats. We've noticed slight discrepencies between the values
reported in the text file, and values obtained by converting aseg.mgz to
analyze (using mri_convert) and adding up the same structures ourselves
in matlab.
Hi Aaron,
this is probably due to the partial volume correction we do when
computing the volumes. Basically we assume that each voxel is a linear
combination of the tissue at that voxel and the next most likely label that
neighbors that voxel. The weighting is computed as mixture weight for
Use lh.curv instead of lh.avg_curv. For lh.thickness, there is a bug in
make_average_subject (resamples the avg thickness to the first or last
subject instead of the average subject). If you are going to be doing a
group stat analysis, you will usually get the mean thickness. Otherwise,
you
Hi,
I would like to paint group analysis results to the surface of the
fsaverage brain to produce .w files.
With individual subject analyses (that were calculated in individual
space, i.e. not morphed), I have been able to use mri_vol2surf in this
manner:
mri_vol2surf --src V-REST/sig
