I have two queries, please.

I'd like to have the z-score from my rsfMRI data (seed-analyis).

1) I have extract the z-score from the Vtx Max

In details, after groups comparison analysis, I have opened the cache.th13.pos.sig.cluster.summary contained in group.diff folder and I have read the Vtx Max coordinates.

Next, I have open the z.nii.gz of each subject and I have expected the z-score from the vertex which have the Vtx Max coordinates.

Is this procedure corrected?

2) z-score of each subject from a common cluster

I would like to use the cluster which shows the group difference (cache.th13.pos.sig.cluster.nii.gz) as ROI mask. Thus, I would extract from it the average of the z-score which is contained in each subject.

How should I do? 

Thanks.

Stefano