I am working on a VBM analysis (SPM2) with one subject group
scanned at 2 time periods.
I would like to correlate gray matter change from Time1 to Time
2 with a particular covariate. I think I would need to run a
regression analysis and feed in the difference maps of Time1
>Time2[1 -1] in the form of com.img files for each subject
along with a vector of covariates pertaining to each subjects
difference map. I'm not sure how to get the con.img file for
each subject in a VBM analysis though.
Thanks in advance for you help and time.
Maria
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