One Sample t-test Clusters after running ClustSim

Hi everyone,

Im running mpfc-whole brain functional connectivity and am comparing connectivity in different groups.

I ran my one sample t-test and used p value threshold and voxel size as per my ClustSim, but I am still getting 6-7 significant clusters.

When I move on and extract z scores, Im getting 6-7 columns of scores. When calculating the average, do I average across all 6-7 columns? If not, how do I choose how many to average across?

Thanks in advanced!