I’ve been trying to figure out the FSL BET threshold used in fmriprep. Could you please clarify the threshold? I’d also like to know if there is an option to adjust the BET threshold in the fmriprep pipeline.
(My confusion comes from noticing this line of code “'bet structural.nii brain_anat.nii -f 0.70’” from niworkflows/niworkflows/interfaces/masks.py and assumed it to be .3, but
also noticed a different line of code “bet_hmc = pe.Node(BETRPT(mask=True, frac=0.6), name=‘EPI_hmc_bet’)” from fmriprep/fmripre/workflows/epi.py)