On Sat, 23 Jun 2012, Gabor Perlaki wrote:
Dear Bruce,
We don't used any thresholding by ourselves, we just took BA44 volumes out
of the text-file in the stats directory.
Should we use thresholded values instead of the volumes reported by the text
files in the stats directory?
Could we use the volumes reported by the aparc.stats and aseg.stats files
for any statistical analyses, or do we need threshold that structures as
well?
Thanks,
Gabor
2012/6/23 Bruce Fischl <fischl@nmr.mgh.harvard.edu>
Hi Gabor
are you thresholding the BA4 label? In 5.2 we will distribute
some tools to automatically threshold the labels so that the
predicted area has the average area of the input labels. The
right BA44 had more spatial spread than the left, so you might
be including a lot of low probability vertices.
cheers
Bruce
On Sat, 23 Jun 2012, Gabor Perlaki wrote:
Dear Bruce,
In the paper "Left-right asymmetry in volume and
number of neurons in adult
Broca's area." by Katrin Amunts, 10 subjects (5 men
and 5 women) were
studied, and the volume of BA44 was greater in the
left hemisphere than in
the right in all ten cases. So, it is very strange
that the volume of BA44
was greater in the right hemisphere in all of the 80
subjects analyzed by
Eniko.
Thanks,
Gabor
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