Hi,
I'm new to SPM preprocessing and want to understand whether I did the preprocessing correctly.
I preprocessed my task-based fmRI data exactly as outlined in the SPM12 manual for the auditory data.
So, for e.g. Realignment, I chose “Realignment: Estimate & Reslice”, and then “Reslice: Mean image only”.
When I do that it seems to update/realign the slice time corrected images *a.nii (as the date when it was last modified changes). However, it does not create new “ra*.nii.” images.
I guess my confusion is that I cannot really “see” the separate images (i.e. the *ra.nii), i.e. I get confused why they don’t get the new prefix “r”. I get the other outcome from that realignment process though (i.e. mean image and movement parameters). Then, later in the normalisation step I choose the functional images with the prefix "a" (as there are no separate "ra" images created). Is that correct, so will be the slice time corrected, realigned images be normalised?
Or did I do something wrong? I would appreciate any clarification in that matter.
Thank you!
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