Hello FSL Experts,
I am using FEAT to pre-process (with ICA denoising) prior to MELODIC on a resting state individual analysis prior to group analysis..
I have one patient who had particularly noisy data, and in an effort to filter out more of the noise, I did several runs with incrementally higher values of the High Pass Filter (s) - 100, 250, 500, 750, 1000, 3000, 6750, 9000.
The outcome showed improving noise removal with fewer and less noisy components after ICA in FEAT. But no difference past 6750 s.
- I note an output document stating the cap on the filter is 1000, yet the results improved past this value. Why?
- How does the Temporal Filtering High Pass effect this?
- After FEAT, do I need to put the same time cut off for Melodic?
- I suppose I need to use the same High Pass Filter for all of my data to have uniform group analysis later?
Best regards,
Varina
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