Hi Daniel,

Thanks for the suggestion. The two 3dWarp commands simply took a mask of leftMFG+tlrc as input and applied a transformation to produce an output file in MNI space with the specified prefix. I am looking over the 3dfractionize example and want to make sure I properly specify the commands (Example: 3dfractionize -input dset+tlrc -warp ~/abin/TT_N27+tlrc -prefix dset_mni -template template_mni+tlrc).

For -input, I assume I would specify leftMFG+tlrc as I did previously. But the post references that the user must create a template dataset (presumably in MNI space). Does this consist of my resting functional scan(s) already in MNI space? I'm confused. Also, can I use this method if my ROI is from the TT_desai_dkpmaps+tlrc dataset (and not TT_N27 dataset as the post mentions)? Sorry for these two follow-up questions, but I want to make sure I properly specify the appropriate input, images for the -warp step and the appropriate template images. I appreciate your help!

~Stephanie