Dear Alfonso,

My apologies for such a long response, I was retesting the experiment that was described previously on different machines.

Thus to conclude:

1. the results are 100% reproducible on one machine in time, it was just my bad: I've used *.nii structural files stacked in different software (SPM and Nibabel for the 3D image retrieval from DICOM). And it leads to some bias, that I've referred to CONN processing.

2. the results are not reproducing on different machines, indeed; and the bias is related to the processor core. On our test, the maximum Mean Average Percentage Error (MAPE) of the functional connectivity graph analysis results reached 8%.

Attaching the archive with 5 *.mat files (4 subjects in each). These files were processed with default settings on 5 different machines and should produce identical results: 1. Core i5, Win10 2. Core i5, macOS 3. Pentium, Linux, 4. and 5. Core i7, Win 10.

Could you please have a brief look if you can spot the differences?

Thanks so much!

Warm regards, Kate