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Hi all (I sent this question a month ago but didn't recieve any answer) I made an analysis in NIFTI file, in MATLAB. the file describes some results of experiment in fMRI (in the time dimension there are 50 events). I saved it in a new NIFTI file. Now I want to check the significance between voxels in the new image in order to see which voxels are taking place in those events. In FSLVIEW, usually we insert 2 images and the program knows how to make the contrast between them and see if there is a significance . But I need to see within the specific image which voxels are active more then others. How can I do it? (Maybe I need to add to this file some zeros to compare with? Or maybe I need to add another file with zeros?) Thank you very much Asaf