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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