That number is the mean vertex area, so to get the total area for each
subject multiply that number by the number of vertices in the cluster.
On 3/21/16 2:29 PM, Karl Liu wrote:
Dear FS team,
My question is how I should extract the measure of pial surface area
from a significant cluster after group-analysis. I performed
statistical analysis in QDEC, choosing pial surface area as the
measure. I found a significant cluster. Now I would to extract the
surface area of this cluster from each subject, so that I can plot the
group means. But the numbers I got from the
"cache.th20.neg.y.ocn.dat" file are quite small (mean centered at ~1).
I am wondering how I should get the correct numbers from each subject.
thank you in advance
Karl
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