1)I would like to know what is the best way in catching the uncorrected clusters results from the sig.mgh for a structural study:

Should I use the:

 mri_glmfit-sim \
--glmdir lh.GroupAnalysis_Thickness_15.glmdir \
--cache 2 pos \
--cwpvalthresh .99 \
--overwrite

But in this case I am not getting all the clusters regarding their significance after correction by multiple comparison? I don't want the clusters from multiple comparisons just the uncorrected one.
 I am not sure why when I look to my clusters in QDEC I get a different p value for the uncorrected results sig.mgh that the one cached with the --cwpvalthresh .999 for example from QDEC for one cluster rostralmiddlefrontal in sig.mgh I got p =0.00338 while with the catche option and --cwpvalthresh .999 I got cwp 0.75890.
I am doing something wrong?



2) If I know the MNI coordinates how I can get the location I mean the segmentation or annotation location of my clusters to the nears cortical label?


 

Many thanks.

AK