Hi,
I would like to understand what is the order of the voxels in *_roi.mat file. As far as I have found it is not the descending order of t-values (the activation strength). Specifically, I am interested is whether each consecutive voxel is contingent to the previous cluster. For example, suppose I write the *_roi.mat, which contains 200 voxels. Now, by using my custom script I want to create the*_roi.mat of 100 voxels out of the 200 original voxels (I do not care about significance threshold). Would it make sense to take first 100 voxels in *_roi.mat file? Alternatively, if I first sort 200 voxels in descendant order by contrast t-value and then take first 100 voxels, I am not promised to have the contingent cluster.
Thanks for help,
John
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