Hi,
> Could anyone please advice us how to get maximum t-score within pervious defined ROI (by Marsbar) from a group's activation t-map?
You could use a variant of this script;
http://marsbar.sourceforge.net/faq.html#percent_activated
where you would change this line:
pc_above_thresh(i) = sum(y(i,:) > thresholds(i)) / n_voxels * 100;
to
max_t(i) = max(y(i,:));
Best,
Matthew
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