Hi fsl experts,
I applied a whole brain mask in easythresh to explore group mean of brain activity. The third level Feat design matrix is simple: one EV of group, two contrasts for both positive and negative mean of brain activity and one F contrast.
EV
1
1
1
...
1
t-contrast F
1 X
-1
From the high level of Feat results: zfstat1, zstat1,zstat2, I applied the easythresh with z=1.64 and p=0.05. The weird thing is I do find significant results for F test (zfstat1), however, not in both t test. Does anyone know if I made mistake?
BW,
Joyce
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