It matters. It will order them in the same order that you have them on the command line. If you want to order them based on modification time, you can do something like

mri_concat --o out.nii `ls -t *.nii`

doug

Rita Loiotile wrote:

For a series of nifti fMRI images does it matter in what order I list the images for my input? Or does MRI_concat get the time series info from the files themselves?

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