Hi,
This may be basic but hope you expert can give me advice.
I have 10 subjects (each with fMRI and T1 scans) and I want to confine my analysis (an 1-sample t-test) in gray matter voxels only. In preprocessing, all fMRI data have been coregistered to their T1 and then normalized to standard template. How can I create a gray matter mask?
My idea is, I will do segmentation (in "output files" , I selected "modulated normalised" for grey matter) for my T1 images and then smoothness for each subject. By doing that, I will get smwc1xxx image for each subject, and finally I create an average of all my subjects. Then, In my fMRI higher-level 1-sample t-test analysis, I will use this average image as "Explicit mask" in "Masking."
Am I correct?
Thanks
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