Hi,
 
1) It uses fsaverage cordinate system unless you have your own averege subject set.
 
2) It used log p value scale. I don`t think it make sense in QDEC to use mm.
 
Best Regards
 
Pedro Paulo Jr

2008/6/24 Feng-Xian Yan <b9403208@stmail.cgu.edu.tw>:
Hi,
   After I ran the qdec and analyzed my data(cortical thickness). I
have two questions.
First, after I display a plot of the data for a particular vertex by
left-clicking on a point while holding down the Ctrl key, it shows a
plot and its plot window shows this vertex's surface coordinates. What
model is the surface coordinates used?
Second, after analyzing the thickness, it shows the color bar's scale
in p-value. How do I do to change the scale from p-value to mm?
.
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