Dear Mathew,
Thank u for your answer. When i change the first contrast and i run the second one fsl does only 76 permutations( the number of my subjects in the matrix).
Data loaded
76 permutations required for exhaustive test of t-test 1
Doing all 76 unique permutations
Starting permutation 1 (Unpermuted data)
Starting permutation 2
These are my .mat and .con files.
Mat file: first group controls, second group patients, third column gender ,fourth column age
/NumWaves 4
/NumPoints 76
/PPheights 1 1 1 15
/Matrix
1 0 1 0,5
1 0 0 -3,5
1 0 1 -1,5
1 0 1 2,5
1 0 1 1,5
1 0 1 -5,5
Con file:
/NumWaves 4
/NumContrasts 2
/PPheights 1 1 1 1
/Matrix
1 -1 0 0
-1 1 0 0
Could u please help me????Thanks a lot in advance
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