Hi, SPM users,
My study goal is to analyze and show the volume difference of gray matter from MRI data-set.
What I want to do is to analyze the "paired-t test" from MRI data.
I have two groups (pre-treatment and post-treatment).
Each group has 20 subjects.
I already did three stages (New segmentation, Create templates, Normalization) by SPM8.
In order to begin the paired-t test,
I triggered "Basic models" on the SPM menu.
At this time, I faced the barrier because they required contrast images for all subjects' pairs.
Up to now, I never tried to make the contrast images using SPM.
Can be there anybody to give me good explanation ?
Thanks,
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