 |
 |
Hi Supreet, Are you concerned with the fact that for each contrast there is just one big cluster? Check carefully all the steps you did, open the images with the results to actually see where the results are located in the brain and search for potential mistakes. If everything looks right, perhaps it is the case that there is indeed a global difference between subjects and controls. If that is the case, it's might be an interesting fact on its own and, if you'd like to further localise effects, you may consider including a global measurement as a covariate in the model (say, global average or maybe the 1st eigenvector across all voxels). All the best, Anderson On 29 August 2013 14:44, Supreet kaur <[log in to unmask]> wrote: > Dear FSL users, > > When I used the cluster commands to get the statistics for my RD and AD > data, I got the following text files (attached ones) > > [fsl@fslvm6 stats]$ cluster -i tbss_AD_tfce_corrp_tstat1 -t 0.95 > --scalarname="1-p" > cluster_AD_corrp_tstat1.txt > [fsl@fslvm6 stats]$ cluster -i tbss_RD_tfce_corrp_tstat1 -t 0.95 > --scalarname="1-p" > cluster_RD_corrp_tstat1.txt > > How do I interpret these results for the difference between the control vs > the patients. I'd really appreciate your help. > > Thanks in advance, > Supreet. > > > On Thu, Aug 29, 2013 at 7:10 AM, Anderson M. Winkler < > [log in to unmask]> wrote: > >> Hi, >> For the original question, the t-statistic is in the files >> tbss_tstat1.nii.gz and tbss_tstat2.nii.gz. >> Anderson >> >> > > > -- > Sincerely, > > Supreet kaur, > Biomedical research engineer, > Nationwide Childrens Hospital, > Columbus, OH > (614)355-3509 >