Hi everyone,
I was hoping to create a functional connectivity matrix using nilearn, where each index of the matrix corresponds to the correlation strength between a pair of voxels between two ROI’s. So, I have ROI 1 (i/e PFC) and ROI 2 (i/e PPC) and each voxel would correspond to the correlation strength between each possible pair of voxels between the two ROI’s.
Would it be easiest to combine the two ROI’s (so a PFC + PPC ROI) and a connectivity matrix of all the voxels within the ROI?
Any tips to go about this? Thanks so much!