I have been following the tutorial from here: https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/LongitudinalTutorial

and here: https://surfer.nmr.mgh.harvard.edu/fswiki/LongitudinalTwoStageModel

And I believe I am running into problems with my GLM design. 

I have a set of subjects with 2 time points each (all about 0.1 years apart). 

All I wish to do is see what areas are significantly changed in volume, after correcting for multiple comparisons (fdr or montecarlo). 

Could anyone suggest how I should setup the Design in QDEC?. I have included years and age in my cross.qdec.table.dat file (made from my long.qdec.table.dat file as described the tutorial, and have the measures of long.thickness-avg, long.thickness-rate, long.thickness-pc1 and long.thickness-spc avaialble (again from the tutorial).

Any advice would be greatly appreciated.

Sal