 |
 |
Hi - yes that should run - I'm not sure what it will mean though! (Not sure how biologically unambiguously interpretable ALFF maps are…..) Cheers. On 6 Dec 2011, at 13:14, Ahmed Abou Elseoud wrote: > Dear FSL experts, > I have run both ICA and ALFF analyses on the same datasets (patients and controls matched for both age and gender). Then I have used Randomise to to estimate between-group differences (ICs and ALFF map). > Now, I would like to test whether the detected between-group ALFF differnences have influenced ICA results. Could I test that by including ALFF individual maps as a voxelwise covariants in the permutation test (Randomise). For instance, using the following command line: > > randomise -i ICs (outputs from melodic+dual-regression) -o output -d design.mat (including a 3rd column with zeros) -t design.con (including a 3rd column with zeros) --vxl=3 --vxf=ALFF maps (arranged in a correponding order to melodic ICs) -n 500 -T -V > > Do you think it is doable this way? If not, do you have any suggestions? > > Regards, > Ahmed > --------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------