bias correction : for Restingstate data preprocessed by DSPARSFA

Hi All,

I am Syida , also  a newbie here and very new for neuroimaging datat processing as I need to finish off my thesis and I think I need some helps in clarifying a few things.

1. I am told to  perform bias field correction for all the preprocessed fMRI data load- and I have done that for fMRI, no problem.

2. I have completed preprocessing procedures for resting state data by employing DPARSFA, that was done but questions are :a) do I need to do bias field correction for this data - of course mine is high chanelled (i think it is 32 channel)

b) If so- how and which folders as I have tried and fail to do this.Please advice. Thank you.