Fmriprep: resampling of denoised BOLDs & SUSAN smoothing options

[jdkent]

Hi @ak_poorni,

ICA AROMA is applied to the BOLD series in MNI152NLin6Asym (MNI) space.

I do not believe applying the AROMA components from MNI space to “most” other spaces should impact the results significantly (unless the transformation from one space to another is extreme and/or poor).

@dvsmith linked a superthread about different ICA-AROMA conversations, you can see if you find some useful suggestions there too:

Aggressive vs nonaggressive denoising

Thanks, Martin! I think we’re just going to try and make one confound matrix (including the cosineXX regressors for hp filtering) during the first-level analyses in FSL. Based on all the related threads (see links below), it seems like that would be the best way of accounting for shared variance and avoid re-introducing noise. Within that confound matrix, we would include the cosineXX regressors, the non-steady state regressors, and CSF/WM regressors alongside the aromaXX regressors. I’d like t…

Best,
James