Dear FSL Experts,
I have been working with Group ICA and using Dual-Regression to look for differences in network connectivity in a pre-port design. I have seen some papers in which the authors used stage 2 outputs to compute average connectivity for a given network, which would produce a single score/statistic that could use for post-hoc analysis (e.g., calculate Cohe's D or perform ANOVAS etc).
I was wondering if anyone has taken similar approaches using the stage 2 outputs? And what steps were taken?
Is coherent to use the following steps?
1) convert stage 2 outputs (using fsl2ascii) to ASCII text file which would result in 1 file per input/timepoint,
2) then compute a voxel-wide average for each one of these inputs/timepoints
3) use the result as "average connectivity" within a given IC for each subject
4) create a group average from each individual "average connectivity index"
5) use the group average to perform post-hoc analysis
Would appreciate any help,
Best Regards,
Narlon
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