Dear all,
I have a group of 16 participants, under 3 different resting state fMRI sessions (PM, SM, NM) and at two time points (time1, time2).
- I would like to compare time1 vs. time2 for each session.
- I would like to know if sessionPM (time1-time2) better than session SM (time1-time2) or session NM (time1-time2) .
From what I understood so far:
- I combined all the sessions/subjects/time (3x16 x 2= 96 data sets) into the same group-ICA (10 components).
- For each session, i subtracted the individual dr stage 2 files (time pre-post): resulted in 30 images per participants (10 components x 3 sessions), which each containing the time course of the 10 components for the difference of the three conditions.
- then I use "fslmerge -t" to create a single 4d file for each subject, with components represented in the 4th dimension.
And then I am wondering:
1- Which input should I feed into randomise to compare time1 vs time 2 for each component for each session?
2- how can i test if time1 vs time 2 (for each component) is different across sessions?
Thanks!
J.
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