Hello all, I'm analyzing the data for a training study our research group conducted, and I'm looking to see if there are changes in cortical thickness as a result of training. We have pre- and post-training scans, so I followed the longitudinal tutorial ( http://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/LongitudinalTutorial#InspectingLongitudinalData). There are 4 measures listed on the website (average, rate, pc1, and spc) - which do I choose if I simply want to see if there is a difference in cortical thickness for pre vs. post? Also, do I need to run anything afterwards such as cluster corrections?
Best, -W. Ryan McGarry
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