Dear FSL developers, Just a bit of background, so that hopefully this helps a bit to solve my problem: - I have two groups with pre and post measurements - I have subtracted : pre-post (so pre > post) - than I ran the dual regression independent t-test on this difference with education as covariate and voxel-wise grey matter correction Looking at the output of the components (corp_tstat files) in fslview, I have the following problem: - the corp_tstat file covers the whole field of view with one color - when I change the threshold above (min: 0.01 and max 0.05) I can see the results, but these are not thresholded as the values of the voxels runs above 0.05 So, my questions are: - how can I visualize only the voxels that remained after the corrections (so < 0.05) - do I need to do this analysis all over again for investigation the opposite (post > pre) Thank you very much!! Best Heidi ================================================ Dr. Heidi Jacobs Postdoc researcher Faculty of Health, Medicine and Life Sciences School for Mental Health and Neurosciences Division Cognitive Neuropsychiatry and Clinical Neurosciences Alzheimer Center Limburg [log in to unmask] www.maastrichtuniversity.nl www.heidijacobs.nl Dr. Tanslaan 12, 6229 ET Maastricht P.O. Box 616, 6200 MD Maastricht, The Netherlands T +31 43 38 84 090 F +31 43 38 84 092 ================================================