Dear FSL experts,
I would like to run Dual regression to identify group difference using a particular RSN
I understand that dual regression can be performed using whole brain mask (to perform whole brain analysis) and using the mask of RSN.
I would like to know which of the following is the correct way to perform the latter analysis (analysis restricted to the RSN)
assuming i have completed the dual regression (all 3 stages) using whole brain mask, hence i have dr.stage2_ic0000 (4D image of the group)
1. I feed the filtered_functional_data (cropped using the RSN mask) to the dual regression and perform all 3 stages of dual regression
or
2. I just run the last step of Dual regression (randomise using the RSN mask)
say eg. randomise -i dr.stage2_ic0000 - o output -m RSN_mask -d design.mat -t design.con -n 500 -T -V
Kindly suggest which is correct.
thank you in advance
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