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Hi - I'm not quite sure what you are describing here - possibly you are saying that you have created a 4D NIFTI file that somehow summarises previous analyses of responses to some stimulation..? In which case if you have a model you want to test against that - you can create the model (e.g.) with the Glm tool, and then test the data against that using randomise? Cheers. On 8 Jul 2009, at 09:16, Asaf Stahl wrote: > 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 > --------------------------------------------------------------------------- Stephen M. Smith, Professor of Biomedical Engineering Associate Director, Oxford University FMRIB Centre FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK +44 (0) 1865 222726 (fax 222717) [log in to unmask] http://www.fmrib.ox.ac.uk/~steve ---------------------------------------------------------------------------