It depends on what you are trying to do with the statistic. But at first glance, I would guess that it is not since the statistic (mean and stddev) will be a mixture of across subjects and time points. It will be hard to interpret
On 5/8/2020 2:22 PM, Nasiriavanaki, Zahra wrote: > Hi Freesurfer experts > > I have extracted the time course of a task fMRI data in a specific contrast > and within a specific ROI, in 7 subjects. > Consider my specific ROI has 1200 voxels and I extracted the time course for > a duration of 5 TRs. After extracting the timecourse, I have a matrix of > 1200x5 for each subject. > To calculate the average timecourse, I concatenated the matrices for the 7 > subjects and made one matrix of 8400x5. Then I averaged across columns which > gives me one mean per column. I also calculated the standard error for each > column. > My question is if this voxel wise way of averaging and calculating the > standard error is statistically correct or not. > I deeply appreciate any comments on this. > > Thanks a lot > Mona > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
