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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