Hi,
I'd like to perform a global brain connectivity (GBC) analysis and replicate the following procedure described in a paper:
"..first computed GBC maps independently for the safe and threat conditions by correlating each voxel’s timecourse with every other voxel’s timecourse, applying the Fisher’s Z transformation, and averaging across these correlation maps".

The gray matter mask that I use from the TT_N27 atlas has 73500 voxels, which means creating a 73500 x 73500 matrix for each subject, applying a fisher's z, and averaging for each voxel all the Zs to obtain a final brik with one value per voxel.

What are the steps that I need to do after the deconvolution to replicate this procedure?

thanks

ns